{"title":"Thread Adapters, Extensions, Spacers, and T-Rings","description":"","products":[{"product_id":"antares-m48-variable-camera-adapter","title":"Antares M48 Variable Camera Adapter (TEXT-48)","description":"\u003cp\u003eAstrophotography using intermediary lens systems such as, focal reducers, field flatteners, barlows etc.can require a precision back-focus to the image plane so as to not compromise colour and field curvature. With this M\/F M48 adapter you have a separation range of 31-49mm. Comes with locking ring and accepts 2\" filters.\u003c\/p\u003e\n\u003cp\u003eM\/F spacing for M48x0.75 threads varying from 31-49mm. It can be hybridized with TEXT-42 to change either the input or output threads.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42102765846780,"sku":"TEXT-48","price":57.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/adapter-camera-m48-variable1-sw.jpg?v=1645476007"},{"product_id":"antares-photo-adapter-125","title":"Antares 1.25\" Photo Adapter (DP1)","description":"\u003cp\u003eThe Antares 1.25\" Photo Adapter allows prime focus photography by attaching your SLR or DSLR to a 1.25\" focuser or 1.25\" diagonal. A T-ring for your camera is required to connect the photo adapter to the camera.\u003c\/p\u003e\n\u003cp\u003eDP1 adapts your 1.25\" focuser or diagonal directly to M42 T-Thread. Threaded for filters.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42102766174460,"sku":"DP1","price":19.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/125PhotoAdp_d29b46cb-bf7a-47fa-a56e-71858ede9d76-sw.jpg?v=1645475870"},{"product_id":"antares-t-adapter-for-schmidt-cassegrains","title":"Antares T-Adapter For Schmidt-Cassegrains (TAL)","description":"\u003cp\u003eTAL threads directly onto the back of your Schmidt-Cassegrain and outputs M42 T-thread with a 55mm extension.\u003c\/p\u003e\n\u003cp\u003eThis sturdy metal T-Adapter is the accessory of choice if you’d like to attach an SLR or DSLR camera to the rear cell threads of a Schmidt-Cassegrain telescope for prime focus photography. T-Threads accept camera brand specific T-Ring (sold separately)\u003c\/p\u003e\n\u003cp\u003eBoth a T-Adapter and T-Ring are required to mount a 35mm SLR camera to your instrument.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42102766502140,"sku":"TAL","price":40.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/TAL_318574c0-4beb-4af9-a8ce-bad06079ab7b-sw.jpg?v=1645476026"},{"product_id":"canon-t-ring-48mm","title":"Sky-Watcher Canon EOS M48 Camera Adapter (S20300)","description":"\u003cp\u003eDesigned for attaching a Canon DSLR camera to any of the Sky-Watcher 0.85x Focal Reducer\/Correctors.\u003c\/p\u003e\n\u003cp\u003eM48 rings are used for larger format imaging. These are different than the standard T-Thread and are not suitable for use on our Collapsible Dobsonian line. M48 rings are to be used on the Esprit and ProED series when using the dedicated field correctors.\u003c\/p\u003e\n\u003cp\u003eAlso for use with the Celestron T-Adapter Edge HD 9.25, 11, 14 48mm and other applications requiring a 48mm t-ring.\u003c\/p\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":42102767845628,"sku":"S20300","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/Canon-T-ring-48mm_6b923744-95e8-4f0c-aab8-da6c5b609d8a-sw.jpg?v=1645512106"},{"product_id":"canon-wide-t-adapter-24","title":"Tele Vue Canon 2.4\" Wide T-Adapter (CWT-2070)","description":"\u003cp\u003eCanon EOS cameras are popular with astro-imaging enthusiasts. But, the typical T-ring\/telescope setup does not take advantage of the wide aperture of the Canon bayonet mount: significant vignetting is caused by the constriction of the T-ring opening.\u003c\/p\u003e\n\u003cp\u003eCanon Wide T Adapter with Bayonet for 2.4\" connects to your EOS in place of the T-ring and provides 25% greater aperture to minimize vignetting.\u003c\/p\u003e","brand":"Tele Vue Optics","offers":[{"title":"Default Title","offer_id":42102767943932,"sku":"CWT-2070","price":96.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/CWT-2070_43f027f5-50d7-4649-b23d-e3b46db44810-sw.jpg?v=1645513913"},{"product_id":"celestron-camera-adapter-canon-mirrorless-rasa-8","title":"Celestron T-Adapter for Canon Mirrorless, RASA 8 (93406)","description":"\u003cp\u003eMirrorless cameras are spreading like wildfire in the astroimaging community—and for good reason. When paired with Celestron’s groundbreaking 8” Rowe-Ackermann Schmidt Astrograph (RASA), you can achieve spectacular deep-sky astronomical images.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSo what makes a mirrorless camera the perfect match for RASA? First, the compact camera body provides minimal obstruction when placed on the front of the RASA optical tube. Second, the sensitive imaging chip helps capture every bit of stunning detail that the RASA optical brings in.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIf you’d like to use your Canon mirrorless camera with the 8” RASA, this adapter is a must-have accessory. Using the camera’s integrated bayonet mount, it attaches securely to the front of RASA. What’s more, this adapter places the camera’s sensor at the precise backfocus distance for optimal image sharpness.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102768926972,"sku":"93406","price":87.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/CanonMirrorlessADPT_5b370edd-0bfb-4700-9e86-b45c6b29fead-sw.jpg?v=1645509576"},{"product_id":"celestron-large-sct-adapter-v2","title":"Celestron Large SCT and EdgeHD Adapter V2 for Off-Axis Guider (93666)","description":"\u003cp\u003eProduce a larger area of illumination for your 9.25”, 11” or 14” Schmidt-Cassegrain or EdgeHD telescope by using the this adapter.\u003c\/p\u003e\n\u003cp\u003eWhen this adapter is paired with our Off-Axis Guider, these two imaging accessories allow you to use the full image circle in our larger scopes. This configuration is especially helpful to owners of larger format cameras, such as the Canon 5D or 6D, since their full frame can take advantage of the more substantial area of illumination produced by larger optical tubes.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eWhat’s New!\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe Large SCT \u0026amp; EdgeHD Adapter V2 for Off-Axis Guider has a longer optical length—38mm. The adapter’s longer length provides DSLR cameras back-focus spacing for Schmidt-Cassegrain and EdgeHD optical tubes in conjunction with the Off-Axis Guider without the need for extra adapters or spacers.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eBody\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe Large SCT \u0026amp; EdgeHD Adapter V2 for Off-Axis Guider is machined aluminum black anodized. The internal surfaces are sandblasted to help prevent glare and provide the highest contrast. The adapter has a knurled surface providing a great gripping surface for threading and unthreading.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length:\u003c\/td\u003e\n\u003ctd\u003e38mm (1.49\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperature:\u003c\/td\u003e\n\u003ctd\u003e63mm (2.48\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction:\u003c\/td\u003e\n\u003ctd\u003eAluminum Black Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e6 oz (170.09 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102770401532,"sku":"93666","price":57.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93666_8519c0f3-6d65-4648-a749-cc2725ec3a21-sw.jpg?v=1645508288"},{"product_id":"celestron-off-axis-guider-adapter","title":"Celestron Off-Axis Guider Adapter (93652)","description":"\u003cp\u003eLarge SCT\/EdgeHD Adapter for Off-Axis Guider\u003c\/p\u003e\n\u003cp\u003eThe Celestron Large SCT\/EdgeHD Adapter was made especially for our Off-Axis Guider (#93648, sold separately). When paired, these two imaging accessories allow you to use the full image circle created by a 9.25”, 11” or 14” SCT or EdgeHD telescope.\u003c\/p\u003e\n\u003cp\u003eThis configuration is especially helpful to owners of larger format cameras, such as the Canon 5D Mark III or the 6D, since their full frame can take advantage of the more substantial area of illumination produced by larger SCT and EdgeHD telescopes.\u003c\/p\u003e\n\u003cp\u003eThe OAG adapter has a clear aperture of 62.7 mm, or 2.47 inches, consumes 16 mm of back focus, and weighs just 4.64 ounces. It is machined out of black anodized aluminum and attaches to the large baffle lock nut threads on the rear of the telescope.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102772072700,"sku":"93652","price":51.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/OffAxisGuiderAdptr_f8c1c671-1eba-4410-85c6-9bfbd1f71b35-sw.jpg?v=1645508700"},{"product_id":"celestron-sct-to-2-adapter","title":"Celestron SCT to 2\" Adapter (93661)","description":"\u003cp\u003eThis sturdy, high-quality adapter provides a solid connection between your Schmidt-Cassegrain or Maksutov-Cassegrain telescope and 2” accessories without any special threaded 2\" diagonal. This accessory makes it possible to maximize your views through your telescope with your standard 2” diagonal, eyepieces, and other accessories (like photo adapters) allowing you to connect a camera for astroimaging. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe adapter offers an ultra-secure threaded connection to your telescope. On the other side, a brass compression ring provides a strong grip on eyepieces accessories without scratching or denting their barrels. To tighten the ring around the accessory, just adjust the set screw.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWith its precision machined aluminum construction and black anodized finish, this adapter will resist corrosion and wear, providing you with years of use. The black interior also reduces the internal light reflections, enhancing your view.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize:\u003c\/td\u003e\n\u003ctd\u003e53mm x 57.15mm (2.125\" x 2.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e3.9 oz (112 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor:\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial:\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102773612796,"sku":"93661","price":37.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93661_SCT_to_2in_adapter_01_570x380_2x_de0fd91b-c4a8-409e-9f79-c18fc1dd16c6-sw.jpg?v=1645509059"},{"product_id":"celestron-t-adapter-barlow-125","title":"Celestron Universal Barlow and T-Adapter 1.25\" (93640)","description":"\u003cp\u003eThis 1.25” accessory can be used three ways: as a 2X Barlow for visual use, as a prime focus T-adapter, or as a “Barlowed” T-adapter for double the magnification and the benefit of extra inward focus travel.\u003c\/p\u003e\n\u003cp\u003eThe Universal Barlow \u0026amp; T-Adapter can be used as a 2X Barlow right out of the box. Insert any 1.25” eyepiece into the chamber and you’ll enjoy double the magnification, while retaining all the eye relief of the inserted eyepiece.\u003c\/p\u003e\n\u003cp\u003eThe Celestron Universal Barlow \u0026amp; T-Adapter can also be used for prime focus photography, which means you use the telescope as a photographic lens—a very big photographic lens! Just unscrew the bottom section of the unit to remove the Barlow and slide the chrome barrel into the telescope’s 1.25” focuser or adapter. Lock it firmly in place with the focuser or adapter thumbscrew. T-threads on the top of the adapter screw into a T-Ring (sold separately) that is designed to attach to the brand-specific mounting flange of your DSLR or SLR camera.\u003c\/p\u003e\n\u003cp\u003ePlease note that some telescopes, especially “fast” refractors and Newtonians, may not have enough focus travel to allow the photographic image to come to focus when used in prime focus mode. In these instances, adding the Barlow to the T-Adapter will allow the telescope to reach focus. In “Tele-Extended” mode, the Barlow doubles the focal length and f\/ratio of your telescope, resulting in an image on the sensor or film plane that is twice the size of a prime focus image.\u003c\/p\u003e\n\u003cp\u003ePrime focus and tele-extended photography are popular for short exposure images of terrestrial objects as well as celestial objects like the Moon.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102774464764,"sku":"93640","price":95.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93640-T_Adapter_Barlow_01_570x380_2x_2d020552-67e6-4f8b-aab7-967f65207629-sw.jpg?v=1645509732"},{"product_id":"celestron-t-adapter-for-schmidt-cassegrains","title":"Celestron T-Adapter For Schmidt-Cassegrains (93633-A)","description":"\u003cp\u003eThis sturdy metal T-Adapter is the accessory of choice if you’d like to attach an SLR or DSLR camera to the rear cell threads of a Schmidt-Cassegrain telescope for prime focus photography.\u003c\/p\u003e\n\u003cp\u003eTo get started, you’ll need the appropriate T-Ring for your camera body (#93402 for Nikon \u0026amp; #93419 for Canon EOS). Remove the lens from your camera and attach the T-ring in its place. Since the T-ring is camera-brand specific, it will snap right on just like a lens. Next, remove the diagonal and visual back from the rear cell of your telescope. Screw the Celestron T-Adapter onto the rear cell threads until secure. Now, thread the T-ring \u0026amp; camera onto the T-Adapter. That’s all there is to it. The camera is now using your telescope as a giant telephoto lens. The magnification will depend on the telescope’s focal length. For instance, a 300 mm camera lens is considered to be pretty powerful, right? Well, if you are using an 8” SCT at prime focus, you’ve got yourself a 2000 mm lens with a lot of light-gathering capability!\u003c\/p\u003e\n\u003cp\u003ePrime focus photography is popular for short exposure images of terrestrial objects as well as celestial objects like the Moon. If you want to do longer exposures of deep sky objects with this method, we suggest using a separate guidescope or off-axis guider and an equatorial mount.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102774563068,"sku":"93633-A","price":47.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93633_t_adapter_01_570x380_2x_aca2d8d1-4102-4792-9adc-403a831af03c-sw.jpg?v=1645509604"},{"product_id":"mak-t-adapter","title":"Celestron T-Adapter For NexStar 4SE, C90\/C130 Mak (93635-A)","description":"\u003cp\u003eThis sturdy aluminum T-Adapter is the accessory of choice if you’d like to attach an SLR or DSLR camera to the smaller rear cell threads of a Celestron NexStar 4SE telescope or C90 spotting scope for prime focus photography.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTo get started, you’ll need the appropriate T-Ring for your camera body (#93402 for Nikon \u0026amp; #93419 for Canon EOS). Remove the lens from your camera and attach the T-ring in its place. Since the T-ring is camera-brand specific, it will snap right on just like a lens. Next, remove any accessories from the rear cell of your telescope. Screw the Celestron NexStar 4SE T-Adapter onto the rear cell threads until secure. Now, thread the T-ring \u0026amp; camera onto the T-Adapter. That’s all there is to it. The camera is now using your telescope as a telephoto lens.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePrime focus photography is popular for short exposure images of terrestrial objects as well as celestial objects like the Moon.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102779248892,"sku":"93635-A","price":47.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93635_t_adapter_01_570x380_2x_8f44ddd4-f08b-410e-9958-16ad4cccf64d-sw.jpg?v=1645509585"},{"product_id":"nikon-t-ring-48mm","title":"Celestron Nikon Camera Adapter M48 (S20301)","description":"\u003cp\u003eDesigned for attaching a Nikon DSLR camera to any of the Sky-Watcher 0.85x Focal Reducer\/Correctors.\u003c\/p\u003e\n\u003cp\u003eM48 rings are used for larger format imaging. These are different than the standard T-Thread and are not suitable for use on our Collapsible Dobsonian line. M48 rings are to be used on the Esprit and ProED series when using the dedicated field correctors.\u003c\/p\u003e\n\u003cp\u003eAlso for use with the Celestron T-Adapter Edge HD 9.25, 11, 14 48mm and other applications requiring a 48mm t-ring.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102779773180,"sku":"S20301","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/NikonT-ring48mm_8111219b-be05-45a6-838d-130e73d3e7fb-sw.jpg?v=1645509893"},{"product_id":"polemaster-adapter-adm-dv-series","title":"DV Series Dovetail Adpater for PoleMaster Mounting (DVPA-POLE)","description":"\u003cp\u003eFits D (Losmandy type) Series or V (Vixen) Series dovetail bars. Attach the QHY PoleMaster to a D series or V Series dovetail bar. Incorporates a split clamp design that grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 2.5\"\u003c\/li\u003e\n\u003cli\u003eWidth: 4.0\"\u003c\/li\u003e\n\u003cli\u003eThickness: 0.75\"\u003c\/li\u003e\n\u003cli\u003eWeight (as shown): 12 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ADM Accessories","offers":[{"title":"Default Title","offer_id":42102782394620,"sku":"DVPA-POLE","price":121.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/DVPA-POLE_e4918612-7771-4b04-88dc-82c4684759f1-sw.jpg?v=1645509947"},{"product_id":"set-of-6-accessory-tubes-for-24","title":"TeleVue Tubes and Spacers Set for 2.4\" (TLS-2245)","description":"\u003cp\u003eThis set includes 2 spacers and 4 Extension Tubes for 2.4” Imaging System accessories.\u003c\/p\u003e\n\u003ch3\u003eParts List\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e0.040\"\/1mm spacer (TLF-0040)\u003c\/li\u003e\n\u003cli\u003e0.080\"\/2mm spacer (TLG-0080)\u003c\/li\u003e\n\u003cli\u003e0.250\"\/6.4mm tube (TLA-0250)\u003c\/li\u003e\n\u003cli\u003e0.375\"\/9.5mm tube (TLB-0375)\u003c\/li\u003e\n\u003cli\u003e0.500\"\/12.7mm tube (TLC-0500)\u003c\/li\u003e\n\u003cli\u003e1.000\"\/25.4mm tube (TLD-1000)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExtension tubes thread together and into other threaded 2.4” Imaging System accessories. Spacers are nonthreaded and are placed on the 2.4” accessory thread.\u003c\/p\u003e\n\u003cp\u003eCAUTION: to avoid insufficient thread engagement, do not place more than one spacer between tubes. In the picture, the spacers are on either side of the 0.500” tube.\u003cbr\u003e\u003c\/p\u003e","brand":"Tele Vue Optics","offers":[{"title":"Default Title","offer_id":42102782951676,"sku":"TLS-2245","price":217.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/TLS-2245_360b45b8-dc5e-4ee6-b9f4-cc59a15f48d9.jpg?v=1637801993"},{"product_id":"t-2-extension-10mm","title":"T-2 10mm M42 Extension (T2EXT-10)","description":"\u003cp\u003eT-2 Extension Tubes enable you to securely set or vary the spacing between T-2 components. The tubes are available in three lengths, 5 mm, 10 mm, and 25 mm, and are provided with an internal T-2 thread at one end and an external T-2 thread at the opposite end. Full internal threading and blackening kills any stray light reflections.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42102790717692,"sku":"T2-EXT10","price":21.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/adapter-m42-extendercamera-10mm-sw.jpg?v=1645513545"},{"product_id":"t-2-extension-25-mm","title":"T-2 25 mm M42 Extension (T2EXT-25)","description":"\u003cp\u003eT-2 Extension Tubes enable you to securely set or vary the spacing between T-2 components. The tubes are available in three lengths, 5 mm, 10 mm, and 25 mm, and are provided with an internal T-2 thread at one end and an external T-2 thread at the opposite end. Full internal threading and blackening kills any stray light reflections.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42102790848764,"sku":"T2-EXT25","price":24.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/15_75mmExtensions_8f3b3e41-3915-4ff7-b09f-7e8d2a159ff7-sw.jpg?v=1645513552"},{"product_id":"t-2-extension-5-mm","title":"T-2 5mm M42 Extension (T2EXT-5)","description":"\u003cp\u003eT-2 Extension Tubes enable you to securely set or vary the spacing between T-2 components. The tubes are available in three lengths, 5 mm, 10 mm, and 25 mm, and are provided with an internal T-2 thread at one end and an external T-2 thread at the opposite end. Full internal threading and blackening kills any stray light reflections.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42102790947068,"sku":"T2-EXT5","price":19.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/adapter-m42-extender-camera-5mm-sw.jpg?v=1645513557"},{"product_id":"t-adapter-edge-hd-8","title":"Celestron T-Adapter EdgeHD 8 (93644)","description":"\u003cp\u003eT-Adapter for 8” EdgeHD optical tube threads onto the rear cell.\u003c\/p\u003e\n\n\u003cp\u003eThis T-Adapter allows you to attach your 35 mm DSLR camera to the prime focus of your EdgeHD telescope. This arrangement is used for terrestrial photography and short exposure lunar and planetary photography. It can also be used for long exposure deep-sky photography when using a separate guidescope.\u003c\/p\u003e\n\u003cp\u003eBoth a T-Adapter and T-Ring are required to mount a DSLR camera to your instrument.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102791078140,"sku":"93644","price":57.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93644-T_Adapter_EdgeHD_800_03_570x380_2x_563a47c9-c1f9-4430-ace0-98c4dae11843-sw.jpg?v=1645509545"},{"product_id":"t-adapter-edge-hd-925-11-14","title":"Celestron T-Adapter EdgeHD 9.25, 11, 14 (93646)","description":"\u003cp\u003eT-Adapter for 9.25, 11 \u0026amp; 14” EdgeHD optical tubes. It threads onto the rear cell.\u003c\/p\u003e\n\u003cp\u003eThis T-Adapter allows you to attach your 35 mm DSLR camera to the prime focus of your EdgeHD telescope. 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With DSLR CCD chips getting larger, Celestron created the 48mm T-Adapter to reduce vignetting and provide a larger light path to your camera’s sensor, producing exceptional astrophotos.\u003cbr\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe standard T-Adapter for EdgeHD 9.25\", 11\", and 14\" comes with a 42mm T-Thread for a 42mm T-Ring. This smaller 42mm T-Adapter truncates the light cone coming from the back of the EdgeHD optical tubes, which creates vignetting in the corners of full frame imaging sensors. The 48mm T-Adapter has a larger T-Thread opening, allowing the unhindered light to illuminate the entire sensor, optimizing your full-frame sensor’s capabilities.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNote: The 48mm T-Adapter will not offer any advantage to imagers with smaller APS-C sensors. For this, Celestron still recommends the 42mm T-Adapter (#93646) and 42mm T-Rings for your specific model of camera. T-Rings are sold separately. See our 42mm Nikon T-Ring or Canon EOS T-Ring.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCelestron does not offer 48mm T-Rings, however, we do recommend the ones sold by Sky-Watcher USA. They offer the most popular models for Canon, Nikon, and Sony cameras.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe chart below shows the relative illumination of the sensor in a 42mm and a 48mm T-Adapter. The X-axis is the distance from the center of the camera sensor. The Y-Axis is the amount of light being received. As you can see, the 48mm receives more light than the 42mm T-Adapter and will reduce vignetting in your images.\u003c\/p\u003e\n\u003cp\u003eBelow, you will find the difference between the 42mm and the 48mm T-Rings to give you an idea of the space the 42mm and 48mm T-Threads on the T-Adapter will provide.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescopes:\u003c\/td\u003e\n\u003ctd\u003eFits all EdgeHD 9.25\", 11\", and 14\" Telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-Rings Threads:\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75| NOTE: This adapter will not work with M42 x0.75 T-Rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange distance:\u003c\/td\u003e\n\u003ctd\u003e91mm (3.58\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside diameter:\u003c\/td\u003e\n\u003ctd\u003e72mm (2.83\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e8 oz (226.79 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42102791340284,"sku":"93622","price":102.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93622_076a7981-9cbe-4b81-88f9-8af5fc34eff3-sw.jpg?v=1645509528"},{"product_id":"televue-125-pmt-t-ring-adapter","title":"Tele Vue 1.25\" PMT T-Ring Adapter (PTR-1250)","description":"\u003cp\u003eThis threaded adapter ring replaces the 1.25\" eyepiece holder on the TeleVue Powermate 2.5X 1.25\" (and other 1.25\" Powermates). 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What’s more, this adapter places the camera’s sensor at the precise backfocus distance for optimal image sharpness.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":42107134771452,"sku":"93405","price":87.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/cel-93405-sw.jpg?v=1645509342"},{"product_id":"adapter-for-tv102","title":"Tele Vue Reducer Adapter For TV-102 (RAD-1074)","description":"\u003cp\u003eReducer adapter allows TeleVue Imaging System reducers to be used on standard 2\" focusers.\u003c\/p\u003e\n\u003cp\u003eThis adapter slides into any 2\" focuser and provides an \"is\" compatible mounting thread for the Imaging System accessories. This works fine for users of APS-size imagers that don't require large field illumination and allows interchangeability of Imaging System components with non-\"is\" scopes.\u003c\/p\u003e","brand":"Tele Vue Optics","offers":[{"title":"Default Title","offer_id":42107134902524,"sku":"RAD-1074","price":96.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/rad_1074_2in_readptr_f71fbcac-163f-4d05-a6b3-216dd3349091-sw.jpg?v=1645514044"},{"product_id":"dp2-2-direct-adapter-to-t-ring","title":"Antares 2\" Direct Adapter to M42 T-Ring (2DP42)","description":"\u003cp\u003e2\"-M42x0.75 T2 Adapter to DSLR T-Ring. Accepts 2\" filters.\u003c\/p\u003e\n\u003cp\u003eDP2 adapts your 2\" focuser or diagonal directly to M42 T-Thread. Threaded for filters.\u003c\/p\u003e","brand":"Sky Instruments","offers":[{"title":"Default Title","offer_id":42107136147708,"sku":"2DP42","price":43.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/files\/adapter-2-m42-camera.jpg?v=1697135346"},{"product_id":"nikon-wide-t-adapter-24","title":"Tele Vue Nikon 2.4\" Wide T-Adapter (NWT-2073)","description":"\u003cp\u003eNikon cameras are popular with astro-imaging enthusiasts. But, the typical T-ring\/telescope setup does not take advantage of the wide aperture of the bayonet mount: significant vignetting is caused by the constriction of the T-ring opening.\u003c\/p\u003e\n\u003cp\u003eNikon F Wide T Adapter with Bayonet for 2.4\" connects to your Nikon F-mount camera in place of the T-ring and provides 13% greater aperture to minimize vignetting. Can be used with Nikon Z-series mirrorless cameras using an F-to-Z adapter (FTZ) available at camera stores.\u003c\/p\u003e","brand":"Tele Vue Optics","offers":[{"title":"Default Title","offer_id":42107136540924,"sku":"NWT-2073","price":96.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/M54_1073_54mm_to_24inch_oblique-sw.jpg?v=1645513996"},{"product_id":"televue-spacer-rings-for-24","title":"Tele Vue Spacer Rings For 2.4\" Focuser (TLS-1121)","description":"\u003cp\u003eTwo spacer rings, 1 mm and 2 mm, for 2.4\" Imaging System Accessories. 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The T-mount is manufactured from durable metal aluminum alloy.\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":42528809812220,"sku":"ZWO T-Mount","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/T1-sw.jpg?v=1645514240"},{"product_id":"zwo-zwo-nikon-t2","title":"ZWO Nikon-T2-ll Adapter (ZWO-NIKON-T2-II)","description":"\u003cp\u003eThe ZWO new Nikon-T2-II adapter is independently developed by ZWO. 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The adapter you choose depends on the type of photography you wish to do.\u003c\/p\u003e\n\u003cp\u003eYou can take pictures of terrestrial and\/or celestial scenes by using a simple T-Adapter to turn your telescope or spotting scope into a large telephoto lens. The #93633-A T-Adapter is the best choice if you own a Schmidt-Cassegrain telescope with standard rear cell threads. If you have a refractor or spotting scope, the Universal T-Adapter (#93625), with its 1.25” barrel insert, is probably the best choice. 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The T-Threads on the top of the Universal T-Adapter screw into a T-Ring (sold separately) that is designed to attach to the brand-specific mounting flange of your camera. The barrel end of the T-Adapter slides into the focuser, just like an eyepiece, and locks into place with the focuser or eyepiece adapter thumbscrew.\u003c\/p\u003e\n\u003cp\u003ePlease note that some telescopes, especially “fast” refractors and most Newtonians, may not have enough focus travel to allow the photographic image to come to focus when used in prime focus mode. In these instances, we recommend using the Universal Barlow \u0026amp; T-Adapter (#93640), which will double the magnification, but will allow the telescope to reach focus.\u003c\/p\u003e\n\u003cp\u003ePrime focus photography is popular for short exposure images of terrestrial objects as well as celestial objects like the Moon.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44103019331836,"sku":"93625","price":39.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/93625-T_Adapter_Universal_01_570x380_2x_jpg.webp?v=1673039072"},{"product_id":"baader-planetarium-expanding-ring-t-2-m48-t2-29-2458110","title":"Baader Planetarium Expanding Ring T-2\/M48 T2-29 (2458110)","description":"\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMANUFACTURER\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU (#)\u003c\/td\u003e\n\u003ctd\u003e2458110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN CODE\u003c\/td\u003e\n\u003ctd\u003e4047825010209\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEIGHT (KG)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOPTICAL LENGTH (MM)\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/td\u003e\n\u003ctd\u003e41\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER DIAMETER\u003c\/td\u003e\n\u003ctd\u003e50.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER CONNECTION (LENS-SIDED)\u003c\/td\u003e\n\u003ctd\u003eThread, T-2 (M42 x 0,75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/td\u003e\n\u003ctd\u003eThread, M48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOMPATIBLE BRANDS\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, Baader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTYPE OF ADAPTER\u003c\/td\u003e\n\u003ctd\u003eExpanding piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44146079826172,"sku":"2458110","price":33.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/baader-expanding-ring-t-2f-m48m-t-2-part-29-6ee.jpg?v=1674855902"},{"product_id":"baader-planetarium-t2-14a-nose-piece-1-t-2-w-saftey-kerfs-t-2-thread-only-3mm-long-2458106","title":"Baader Planetarium T2-14a Nose Piece 1\" T-2 w\/ Saftey-Kerfs (T-2 Thread only 3mm Long) (2458106)","description":"\u003cp\u003eModern cameras are usually characterized by extremely short optical heights, in order to be able to be mounted on various telescope constructions. The old T-2 standard with 5 mm thread depth is a hindrance to this. To take care of this new development, all new Baader T-2 and M48 parts are delivered with the new 3 mm standard.\u003c\/p\u003e\n\u003ch3\u003eQuick Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNosepiece with 28mm insertion length, with Baader proprietory Safety Kerfs\u003c\/li\u003e\n\u003cli\u003eWith only 3 mm long T-2 thread for modern CMOS cameras\u003c\/li\u003e\n\u003cli\u003eEyepiece side with T-2 malel thread, telescope side with 1¼\" outer diameter\u003c\/li\u003e\n\u003cli\u003eIncl. filter thread M28.5 for all 1¼\" filters\u003c\/li\u003e\n\u003cli\u003eOptical path length: 1.5 mm\u003c\/li\u003e\n\u003cli\u003eAlso available as version without Safety-Kerfs and with longer T-2 thread (5mm):\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMANUFACTURER\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU (#)\u003c\/td\u003e\n\u003ctd\u003e2458106\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN CODE\u003c\/td\u003e\n\u003ctd\u003e4047825045638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEIGHT (KG)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOPTICAL LENGTH (MM)\u003c\/td\u003e\n\u003ctd\u003e1,5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER DIAMETER (MM)\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER CONNECTION (LENS SIDED)\u003c\/td\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER CONNECTION (LENS SIDED)\u003c\/td\u003e\n\u003ctd\u003eBarrel, 1¼\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eINNER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/td\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/td\u003e\n\u003ctd\u003eThread, T-2 (M42 x 0,75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOMPATIBLE BRANDS\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, Baader Planetarium, Celestron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTYPE OF ADAPTER\u003c\/td\u003e\n\u003ctd\u003eBarrel, Expanding piece, Filter holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44146085560572,"sku":"2458106","price":46.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/baader-1-1-4-t-2-nosepiece-with-safety-kerfs-063.jpg?v=1674856319"},{"product_id":"baader-planetarium-7-5mm-15mm-40mm-t-2-extension-tubes-1508155-1508154-1508153","title":"Baader Planetarium 7.5mm\/15mm\/40mm T-2 Extension Tubes (1508155\/1508154\/1508153 )","description":"\u003cp\u003eT-2 Extension Tubes enable you to securely set or vary the spacing between T-2 components. The tubes are available in three lengths, 7.5mm, 15mm, and 40mm, and are provided with an internal T-2 thread at one end and an external T-2 thread at the opposite end. Full internal threading and blackening kills any stray light reflections.\u003c\/p\u003e\n\u003cp\u003eT-2 Extension Tubes are used throughout the ASTRO T-2 System™ to provide proper spacing of system components. The Alan Gee Mark II Telecompressor may be configured in various ways that benefit from the ability to vary the spacing of the lens relative to camera or eyepiece. The extension tubes provide a secure way of varying projection ratios (eyepiece to camera separation), for the OPFA System (afocal and ocular projection), and the MPCC makes use of the T-2 Extension tubes to accurately locate and couple the coma corrector to eyepieces. You can use the extension tubes anywhere you need to precisely space and couple any of the T-2 components, in configurations of your own design.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMANUFACTURER\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU (#)\u003c\/td\u003e\n\u003ctd\u003e1508155\u003c\/td\u003e\n\u003ctd\u003e1508154\u003c\/td\u003e\n\u003ctd\u003e1508153\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOPTICAL LENGTH (MM)\u003c\/td\u003e\n\u003ctd\u003e7.5mm\u003c\/td\u003e\n\u003ctd\u003e15mm\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEIGHT (G)\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003ctd\u003e59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 Part Number\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e25C\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003ctd\u003e25B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSAGE\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003efor eyepiece projection with sliding focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER DIAMETER \/ CLEAR APERTURE\u003c\/td\u003e\n\u003ctd\u003e38mm\u003c\/td\u003e\n\u003ctd\u003e38mm\u003c\/td\u003e\n\u003ctd\u003e38mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER DIAMETER (MM)\u003c\/td\u003e\n\u003ctd\u003e46mm\u003c\/td\u003e\n\u003ctd\u003e46mm\u003c\/td\u003e\n\u003ctd\u003e46mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER CONNECTION (LENS SIDED)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eThread, T-2 (M42 x 0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eThread, T-2 (M42 x 0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOMPATIBLE BRANDS\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eAstro T-2, Baader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTYPE OF ADAPTER\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"7.5 mm","offer_id":44167365165308,"sku":"1508155","price":33.0,"currency_code":"CAD","in_stock":true},{"title":"40 mm","offer_id":44167365230844,"sku":"1508153","price":40.0,"currency_code":"CAD","in_stock":true},{"title":"15 mm","offer_id":44167365198076,"sku":"1508154","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/baader-t-2-75-mm-extension-tube-t-2-part-25c-600x400.jpg?v=1684728489"},{"product_id":"baader-planetarium-t-2-7-5mm-15mm-40mm-extension-tube-t-2-part-25a-25b-25c","title":"Baader Planetarium T-2 \/ 7.5mm\/15mm\/40mm Extension Tube (T-2 part #25A\/25B\/25C)","description":"\u003cp\u003eFor over 30 years we have focused on the Astro T-2 thread system (M 42 x 0.75 mm); virtually every telescope manufacturer must offer this thread far ahead of the focal point of his instrument, such a universal T-ring (for DSLR cameras) can be connected.\u003c\/p\u003e\n\u003cp\u003eThe only exceptions are (still) Russian equipment, there the thread diameter is the same, but the pitch is still 1mm per revolution - rather than 0.75mm! Therefore, we offer among other things a \"Russians adapter\". At only 7mm additional optical length it can allow so many Russian lenses or telescopes to be compatible with an international Astro T-2 (M 42 x 0.75mm) connector!\u003c\/p\u003e\n\u003cp\u003eFor the sake of better recognition mostly are marked. See marking small 'a' or small 'i' in the respective indication! \"a\"; identifies an external thread (male); or, if Ø sign which a diameter, \"i\"; - a female is always (female) or - Ø character - an inner diameter.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMODEL\u003c\/td\u003e\n\u003ctd\u003eT-2 \/ 7.5mm\u003cbr\u003eExtension Tube\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003eT-2 \/ 15mm\u003cbr\u003eExtension Tube\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003eT-2 \/ 40mm\u003cbr\u003eExtension Tube\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU (#)\u003c\/td\u003e\n\u003ctd\u003e1508155\u003c\/td\u003e\n\u003ctd\u003e1508154\u003c\/td\u003e\n\u003ctd\u003e1508153\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN CODE\u003c\/td\u003e\n\u003ctd\u003e4047825016201\u003c\/td\u003e\n\u003ctd\u003e4047825016218\u003c\/td\u003e\n\u003ctd\u003e4047825016225\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNET WEIGHT (G)\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOPTICAL LENGTH (MM)\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-2 PART #\u003c\/td\u003e\n\u003ctd\u003e25C\u003c\/td\u003e\n\u003ctd\u003e25A\u003c\/td\u003e\n\u003ctd\u003e25B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSAGE\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eFor Eyepiece Projection with Sliding Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER DIAMETER \/ CLEAR APERTURE (MM)\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER DIAMETER\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eINNER CONNECTION (LENS SIDED)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eThread, T-2 (M42 x 0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eThread, T-2 (M42 x 0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOMPATIBLE BRANDS\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eAstro T-2, Baader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTYPE OF ADAPTER\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003ctd\u003eExtension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFILTER SIZE\u003c\/td\u003e\n\u003ctd\u003e7.5 mm\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Baader Planetarium","offers":[{"title":"7.5mm (1508155)","offer_id":44228241391868,"sku":"1508155","price":33.0,"currency_code":"CAD","in_stock":true},{"title":"40mm (1508153)","offer_id":44228241457404,"sku":"1508153","price":40.0,"currency_code":"CAD","in_stock":true},{"title":"15mm (1508154)","offer_id":44228241424636,"sku":"1508154","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/7702\/9116\/products\/baader-t-2-75-mm-extension-tube-t-2-part-25c-673.jpg?v=1676881034"}],"url":"https:\/\/all-startelescope.com\/collections\/thread-adapters-extensions-spacers-and-t-rings.oembed?page=6","provider":"All-Star Telescope Canada","version":"1.0","type":"link"}