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Telescopes
Best of Telescopes
Best Telescopes for Kids Best Telescopes for Beginners Best Telescopes for Astrophotography Best Telescopes for Viewing Planets Best Telescopes for Eclipses Best Telescopes Under $500 All Telescopes Telescopes on Sale
By Type
Celestron NexStar Celestron StarSense Explorer Refractors Reflectors Dobsonians Scmitd Cassegrain - SCT GoTo and Computerized Table Top Spotting Scopes Guide Scopes Solar Telescopes Optical Tube Assembly - OTA Astrographs All Telescopes
By Brand
Askar Celestron Explore Scientific Meade Orion SharpStar Sky-Watcher Tele Vue Unistellar William Optics All Telescopes
Start Here
Buying Your First Telescope So You've Got a Telescope: Now What?
Astrophotography
Cameras
Deep Sky Planetary and Lunar Guiding Cameras Solar All Cameras
Filters
LRGB Filters SHO Filters 3nm Filters Light Pollution Dual Band UV/IR Cut All Filters
Accessories
Auto Focusers and EAF Filter Wheels Filter Drawers Focusing Masks Off Axis Guiders - OAG Smartphone Adapters
By Brand
ZWO Optolong Antlia QHY Orion Baader Planetarium Sharpstar Astrophotography William Optics Astrographs All Astro PrimaLuceLab
Start Here
Astrophotography for Beginners How to Use a Star Adventurer Tracker How to Shoot the Moon
Solar Photography
Daystar Instruments - Quark Meade PST, Coronado Lunt
Mounts and Tripods
By Type
Alt Azimuth Equatorial GoTo and Computerized Harmonic Manual Star Trackers All Mounts and Tripods
By Brand
iOptron Sky-Watcher Celestron Tele Vue Explore Scientific All Mounts and Tripods
Accessories
Counter Weights Mounting Hardware Hand Controllers Mini Piers Polar Scopes Vibration Pads GPS and Wifi Modules All Accessories
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By Size
Zooms 0-5mm 6-10mm 11-15mm 16-20mm 21mm and Up All Eyepieces
By Type
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By Brand
ADM Antares Baader Planetarium Celestron Kendrick Astro Lunt Solar Orion Pacific SharpStar Sky Instruments Sky-Watcher Starfield Starizona Stellarvue Tele Vue Telrad Thousand Oaks All Accessories
By Type
Auto Focusers and EAF Battery Packs Books Carry Cases and Bags Celestron NexStar Accessories Dew Management Diagonals Flashlights and Laser Pointers Microscopes Mounting Hardware Planispheres Polar Scopes and Alignment T-Rings and T-Adapters Reducers and Flatener Smartphone Adapters Solar Filters
All Accessories Essential Astronomy Accessories
STEM
Microscopes Rock Tumbling STEM Toys CMY Cubes
Learning Center
Helpful Articles
Astrophotography for Beginners Series Choosing the Best Beginner Telescope Upgrading Your Telescope Eyepieces Is the Celestron NexStar the Best Telescope?
Videos
Nexstar Videos
Astrophotography
Step 1: Using the Star Adventurer Tracker Step 2: How to Shoot the Moon Step 3: Choosing Gear for Deep-Sky Imaging Step 4: Shooting Deep-Sky Images
Buying Your First Telescope
Part One: What’s the Best Telescope? Part Two: Making the Choice Part Three: Our Recommendations (2022)
Using Your First Telescope
Part One: Tips for Happy Stargazing Part Two: Aligning a GoTo Scope
Birding
How to Buy the Best Binoculars for Birding Get the Most Out of Your Binoculars Bird Watching 101: Your Essential Guide
Brands
Visual Astronomy
Baader Planetarium Celestron Coronado Explore Scientific iOptron Kendrick Astro Lunt Meade Orion Sky-Watcher Tele Vue Unistellar
Astrophotography
Antlia Askar Daystar Instruments Founder Optics Optolong Pegasus Astro PrimaLuceLab QHYCCD Sharpstar William Optics ZWO
Birding and Binoculars
Kowa Leica Pentax Zeiss
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Home / Auto Focuser Astrophotography Accessories

Auto Focuser Astrophotography Accessories

In Stock
ZWO
ZWO EAF 5V Electronic Automatic Focuser (ZWO-EAF-5V)
27 reviews
$269.00

The ZWO electronic auto focuser (EAF) is sure to improve your astrophotography sessions with pin-point stars. It's a great little package that can be installed on virtually any telescope.

In Stock
ZWO
ZWO Temperature Sensor of EAF (ZWO-EAF-SENSOR)
8 reviews
$13.95

This temperature sensor is made specifically for the standard and advanced Electronic Automatic Focuser (EAF). This is a must-have addition to your EAF setup!

In Stock
ZWO
ZWO Hand Controller for EAF (ZWO-EAF-HC)
11 reviews
$54.00

This ZWO Hand Controller is designed to be used with the Electronic Automatic Focuser (EAF), whether it be the standard of the advanced version.

In Stock
Celestron
Celestron Focus Motor SCT (94155-A)
$337.95

The Focus Motor provides electronic focusing for Celestron Schmidt-Cassegrain (SCT), EdgeHD, and RASA telescope optical tubes. With the focus motor installed, you can bring celestial objects into sharp, precise focus using your telescope’s hand controller...

In Stock
Pegasus Astro
Pegasus Astro Motor Focus Kit v2 Universal (PEG-MFKv2-UNIV)
No reviews
$189.95

Focus fast and accurately on your telescope by using our powerful Motor Focus Kit v2. This high-resolution geared box has a 0,06-degree step size and can easily lift more than 6 Kg (per cm). Its...

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Pegasus Astro
Pegasus Astro Hand Controller for FocusCube (PEG-FC-HC)
No reviews
$99.95

This simple hand controller (compatible with all FocusCube versions) allows precise manual focus, vibration-free! Digital Encoder with a Push Button The rotary knob simulates the knob of your focuser. Rotate the digital knob and easily...

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Pegasus Astro
Pegasus Astro FocusCube Zero (PEG-FCZERO)
No reviews
from $479.95

FocusCube Zero: A Must Have for Successful Astrophotography Sessions with your SCT Telescope Focus fast, reliable, and accurate your Celestron SCT telescope by using the "FocusCube Zero". The Stepper motor provides high speed, focus accuracy,...

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Pegasus Astro
Pegasus Astro FocusCube v2 Universal (PEG-FC2-UNIV)
No reviews
$379.99

FocusCube v2: A must have for successful astrophotography sessions Focus fast, reliable, and accurate your telescope by using the “FocusCube 2“. The evolution of technology in astronomy requires a system that will assist the focusing...

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PrimaLuceLab
PrimaLuceLab Adapter ESATTO 3"/3.5"LP/4" for ARCO 3" (PL3600458/PL3600467/PL3600459)
No reviews
from $128.25

You can connect ARCO 3" to the ESATTO focusers with the proper optional adapters and control it with the ARCO cable that comes in the box. Use the PL3600458 adapter to connect ARCO 3" to...

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PrimaLuceLab
PrimaLuceLab Adapter ESATTO 2"/3"/4" for ARCO 2" (PL3600412/PL3600416/PL3600423)
No reviews
from $66.15

You can connect ARCO 2" to all the ESATTO focusers with the proper optional adapters and control it with the ARCO cable that comes in the ARCO box. Use the PL3600412 adapter to connect ARCO...

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PrimaLuceLab
PrimaLuceLab Black Long Bushing for SESTO SENSO 2 Adapters (PL3600117)
No reviews
$21.60

Black color bushing long is usually included in 33 or 37mm adapters that allow to connect SESTO SENSO 2 to focusers with shafts larger than 25mm. If you upgraded from SESTO SENSO first generation to...

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PrimaLuceLab
PrimaLuceLab Flexible Bushing for SESTO SENSO 2 (PL3600119)
No reviews
$25.65

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PrimaLuceLab
PrimaLuceLab Colored Bushings for SESTO SENSO 2
No reviews
from $12.15

These colored bushings allow you to connect SESTO SENSO 2 motor shaft to focusers with different diameter shafts. All bushings are included in the SESTO SENSO 2 box but you can also order these as...

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PrimaLuceLab
PrimaLuceLab ESATTO 4" Adapter for Officina Stellare ProRC/RiDK/RiFAst (PL3600326)
No reviews
$317.25

The adapter ESATTO 4" for Officina Stellare ProRC, RiDK, RiFAst allows you to install ESATTO 4" focuser to ProRC, RiDK, RiFAst telescopes by Officina Stellare that come with M120x1.5 female thread in the rear plate.

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PrimaLuceLab
PrimaLuceLab ESATTO 4" Adapter for Takahashi FSQ-106EDX 3 and 4 (PL3600324)
No reviews
$222.75

Adapter ESATTO 4" for Takahashi FSQ-106EDX 3 and 4 allows you to install ESATTO 4" instead of the original Takahashi focuser. This adapter has 35mm optical thickness and it is designed to have, when used...

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PrimaLuceLab
PrimaLuceLab ESATTO 4" Adapter for Takahashi FSQ-106 (PL3600310)
No reviews
$222.75

Adapter ESATTO 4" for Takahashi FSQ-106 allows you to install ESATTO 4" instead of the original Takahashi focuser. This adapter is designed to have, when used together with ESATTO 4", the same thickness of the...

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PrimaLuceLab
PrimaLuceLab ESATTO 3.5" Low Profile Adapter for OfficinaStellare Veloce RH300 (PL3600361)
No reviews
$398.25

The adapter ESATTO 3.5" LP for OfficinaStellare Veloce RH300 allows you to install ESATTO 3.5" LP focuser to Veloce RH300 telescopes by Officina Stellare. Optical thickness 9mm.

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PrimaLuceLab
PrimaLuceLab ESATTO 3.5" Low Profile Adapter for OfficinaStellare Veloce RH200 (PL3600365)
No reviews
$263.25

The adapter ESATTO 3.5" LP for OfficinaStellare Veloce RH200 allows you to install ESATTO 3.5" LP focuser to Veloce RH200 telescopes by Officina Stellare. Optical thickness of this adapter is 9mm. Since RH200 optimal backfocus...

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PrimaLuceLab
PrimaLuceLab ESATTO 3.5" Low Profile Adapter for GSO/Orion/TPO Ritchey-Chretien 10"/12"/14"/16" (PL3600367)
No reviews
$168.75

If you are searching for the most precise but low profile robotic focuser to use the GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches (both aluminum and carbon tubes) for astrophotography, this adapter allows you...

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PrimaLuceLab
PrimaLuceLab ESATTO 3.5" Low Profile Adapter for Telescopes with Large 3.3" SC Thread (PL3600362)
No reviews
$128.25

Adapter ESATTO 3.5" LP for telescopes with large 3.3" SC thread allows you to connect the ESATTO 3.5" LP to Celestron SCT (11" and 14") and EdgeHD (925, 1100, and 1400) models. Since the ESATTO...

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PrimaLuceLab
PrimaLuceLab ESATTO 3.5" Low Profile Adapter for Telescopes with SC Thread (PL3600366)
No reviews
$128.25

By adding this adapter, you can connect the ESATTO 3.5" LP low profile robotic focuser directly onto the back of SC telescopes. Optical thickness of this adapter is just 10mm.

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for Meade 16" w/ 4" Thread (PL3600292)
No reviews
$398.25

Adapter ESATTO 3" for Meade 16" with 4" thread allows you to connect ESATTO 3" to Meade LX200 SCT, LX200 GPS, LX200-ACF, LX600-ACF, LX800-ACF, LX850-ACF 16 inches telescopes or to all the telescopes that have...

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for SkyWatcher ESPRIT 120 ED and 150 ED (PL3600253)
No reviews
$344.25

Adapter ESATTO 3" for SkyWatcher ESPRIT 120 ED and 150 ED. Specifications

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for SkyWatcher ESPRIT 100 ED (PL3600288)
No reviews
$344.25

Adapter ESATTO 3" for SkyWatcher ESPRIT 100 ED.

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for Borg 90FL and 107FL f/3.9 (PL3600268)
No reviews
$263.25

Adapter ESATTO 3" for Borg 90FL and 107FL f/3.9 is composed by 2 rings, one to connect the microfocuser to the carbon fiber optical tube and another one to insert the Borg reducer/flattener in the...

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for Takahashi TSA 120 (PL3600296)
No reviews
$398.25

Adapter ESATTO 3" for Takahashi TSA120

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for Takahashi Telescopes w/ M72 Thread (PL3600245)
No reviews
$155.25

Thanks to its low profile, the ESATTO 3" is the perfect motorized focuser for Takahashi telescopes with M72 thread. By adding the M72 adapter, you can thread the ESATTO 3" focuser directly onto the back...

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for Takahashi FSQ85 (PL3600271)
No reviews
$128.25

If you are searching for the most precise motorized focuser for Takahashi FSQ85, this adapter allows you to connect ESATTO 3" to this telescope. By adding the M81 to M72 adapter with stop ring you...

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Adapter for SkyWatcher/Orion ED80, ED100, and ED120GSO/Orion/TPO Ritchey-Chretien 10"/12"14"/16" (PL3600236)
No reviews
$168.75

If you are searching for the most precise motorized focuser to use the GSO/Orion/TPO Ritchey-Chretien 10, 12, 14 and 16 inches (both aluminum and carbon tubes) for astrophotography, this adapter allows you to connect ESATTO...

Special Order
PrimaLuceLab
PrimaLuceLab Adapter ESATTO 2" Low Profile for ARCO 2" (PL3600538)
No reviews
$128.25

ARCO 2" connected to ESATTO 2" LP thanks to the optional Adapter ESATTO 2" LP for ARCO 2" PL3600538: free aperture after ARCO 2" is 50.9mm.

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Low Profile Adapter for Telescopes with Large 3.3" SC Thread (PL3600539)
No reviews
$128.25

Adapter ESATTO 2" LP for telescopes with large 3.3" SC thread allows you to connect the ESATTO 2" LP to Celestron SCT (11" and 14") and EdgeHD (925, 1100, and 1400) models. Since the ESATTO...

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Low Profile Adapter for Telescopes with SC Thread (PL3600542)
No reviews
$128.25

By adding this adapter, you can connect the ESATTO 2" LP low profile robotic focuser directly onto the back of SC telescopes. This adapter threads directly to the back SC thread of EdgeHD 8" and...

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for Takahashi FS-60Q (PL3600255)
No reviews
$195.75

If you are searching for the most precise motorized focuser for Takahashi FS-60Q, this adapter allows you to connect ESATTO 2" to this telescope. Based on the camera and accessories train you want to connect,...

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for Borg 55FL f/3.6 (PL3600248)
No reviews
$803.25

The Borg reducer (7880) has to be connected after the rotator. In the picture below you can see how to connect the Borg 55FL lens. PLUS 80mm support rings are not included with this kit....

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for GSO/Orion/TPO Ritchey-Chretien, 6" and 8" (PL3600235)
No reviews
$106.65

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for SkyWatcher/Orion ED80, ED100, and ED120 (PL3600230)
No reviews
$195.75

Specifications Dimensions of the adapter ESATTO 2" for SkyWatcher/Orion ED80, ED100 and ED120. Optical thickness is 40mm.

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for SkyWatcher/Orion Newton 250 f/4 and f/5 (PL3600237)
No reviews
$222.75

ESATTO 2" focuser installed on SkyWatcher Newton 250mm telescope instead of the original focuser. Specifications Dimensions of the adapter ESATTO 2" for SkyWatcher/Orion Newton 250 f/4 and f/5. Optical thickness is 3.5mm.

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for SkyWatcher/Orion Newton 200 f/4 and f/5 (PL3600229)
No reviews
$222.75

ESATTO 2" focuser installed on SkyWatcher Newton 200mm telescope instead of the original focuser. Specifications Dimensions of the adapter ESATTO 2" for SkyWatcher/Orion Newton 200 f/4 and f/5. Optical thickness is 3.5mm.

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for Telescopes with Large 3.3" SC Thread (PL3600212)
No reviews
$87.75

ESATTO is the perfect microfocuser for SC and Aplanatic Schmidt-Cassegrain telescopes (like the Celestron EdgeHD). By adding this adapter, you can connect it to the large 3.3" thread in the back of the Celestron SCT...

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Adapter for Telescopes with SC Thread (PL3600209)
No reviews
$47.25

Thanks to the adapter ESATTO 2" for telescopes with SC thread you can connect the ESATTO 2" to SC telescopes like the Celestron, C6, C8, C9.25 and EdgeHD800. In the picture below, Celestron C9.25 telescope...

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PrimaLuceLab
PrimaLuceLab ESATTO 4" Robotic Focusing Motor (PLLEST4)
No reviews
$1,883.25

ESATTO 4" is the larger robotic focuser in the ESATTO family and, thanks to the large 102.2mm free aperture and high 10kg payload capacity, it's perfect for large professional telescopes usually found in observatories or...

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PrimaLuceLab
PrimaLuceLab ESATTO 3.5" LP Low Profile Robotic Focusing Motor (PLLEST35LP)
No reviews
$1,613.25

Searching for the best low profile motorized focuser with high payload capacity and large free aperture? The ESATTO 3.5" LP is the solution for all telescopes that, like astrographs, have low backfocus! The ESATTO 3.5"...

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PrimaLuceLab
PrimaLuceLab ESATTO 3" Robotic Focusing Motor (PLLEST3)
No reviews
$1,275.75

ESATTO 3" is the robotic focuser perfect for many telescopes like large refractors, Ritchey-Chretiens o Cassegrains! ESATTO is specifically designed for astrophotography but, thanks to specific technologies developed by PrimaLuceLab, it also has the Virtual...

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PrimaLuceLab
PrimaLuceLab ESATTO 2" LP Low Profile Robotic Focusing Motor (PLLEST2LP)
No reviews
$1,181.25

If you're searching for the best low profile focuser for your Celestron EdgeHD 8" or another telescope with low backfocus available, ESATTO 2" LP is the solution! ESATTO 2" LP comes with all the most...

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PrimaLuceLab
PrimaLuceLab ESATTO 2" Robotic Focusing Motor (PLLEST2)
No reviews
$911.25

Wanting to change your stock focuser because it isn’t sturdy enough and lacks precision? Do you want to improve the internal focuser of your SCT telescope? ESATTO is the next generation robotic focuser for telescopes,...

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PrimaLuceLab
PrimaLuceLab Temperature sensor for ECCO, SESTO SENSO, and ESATTO (SESTOSENSO-TEMP)
No reviews
$33.75

This temperature sensor is compatible both with ECCO, the environmental computerized controller for EAGLE, and with SESTO SENSO and ESATTO, the robotic focusing solutions for telescopes. When used with ECCO, this temperature sensor allow it...

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PrimaLuceLab
PrimaLuceLab Adapters for SESTO SENSO 2 (SESTOSENSO-AD26II/SESTOSENSO-AD33II/SESTOSENSO-AD37II)
No reviews
from $87.75

These 26mm/33mm/37mm adapters allow you to install SESTO SENSO 2 on focusers that come with a 26mm/33mm/37mm diameter shafts. Out of the box, SESTO SENSO 2 connects to focusers that come with a 25mm diameter...

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PrimaLuceLab
PrimaLuceLab SESTO SENSO 2 Robotic Focusing Motor (SESTOSENSOII)
No reviews
$403.65

Based on the success of the previous generation motor PrimaLuceLab introduced in 2017, SESTO SENSO 2 adds even more great new features. SESTO SENSO 2 incorporates into a single enclosure (87.5 x 64 x 43mm)...

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iOptron
iOptron Electronic Focuser for RC (8451)
No reviews
$319.95

This iOptron Electric Focuser (eFocuser) is designed for iOptron PhotronTM Ritchey-Chrétien (RC) telescope dual-speed focuser. Now you can focus the telescope by pushing a hand controller button. it is compatible to most iOptron later version...

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iOptron
iOptron Electronic Focuser for MAK150 (8452)
No reviews
$344.95

This iOptron Electric Focuser (eFocuser) is designed for iOptron MAK 150 dual speed focuser. Now you can focus the telescope by pushing a hand controller button. it is compatible to most iOptron later version mounts....

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