SharpStar
Askar 107PHQ Quadruplet Refractive Astrogr... $3,199.95
As the first long-focal-ratio Flatfield astrograph from Askar, 107PHQ is born with a special mission: whether you are just getting started in astrophotography, or an enthusiast who has been quite familiar with all equipment and devices, you can always find Askar 107PHQ a useful astrograph which is functionally practical and physically attractive. Description This telescope is especially amateur or beginner friendly since you don’t need to attach an extra field flattener to get a satisfactory picture. And for the fact that you don’t need a flattener and you can easily get over back-focus calculation and confusing connection steps, all you...
SharpStar
Askar 300 F5 Scope (FRA300) $1,199.99
Since their inception, Askar FRA series short focal ratio astrograph have been very well received by astronomical amateurs. This year, we launched the FRA300 Pro - the smallest 60mm F/5 Petzval astrograph with the fastest native focal ratio in the FRA series so far, its focal length is 300mm. Description The star is sharp and delicate. At the center of its field of view, the RMS radius can reach 2um. Even a serious user can also be satisfied when it comes to the shape of stars. It performs excellence with full-frame and supports 44mm imaging, which is a rare astrograph...
SharpStar
Askar FMA 230 Triplet Air-Spaced APO (FMA230) $808.00
The FMA230 has a compound lens system. The front objective lens comprises three lenses and the posterior reducer is composed of four lenses and thus it’s sometimes dubbed as a “three at the front and four at the rear” system. The aperture size of the objective lens is 50mm and the original focal length is 275mm thus we’ve got a relatively fast focal ratio of f/5.5. The objective lens contains two ED glasses which are adapted to cure chromatic aberrations. Description One can barely find an equal counterpart in the market as designing a three-element apochromatic objective lens in astrograph...
SharpStar
Askar FRA 400 Quintuplet APO Astrograph (F... $1,539.95
The FRA, which stands for "Flatfield Refractive Astragraph", is a refractive astrograph designed for built-in flat field correction. FRA also used in visual observation, this series creates versatile high-quality flat frame images for astrophotography, is the few great telescope of versatile optical tube. Description For easy parameter conversion between different lenses, the first-come of the FRA family features a Petzval-like quintuplet design (two pieces of which are special ED glass) with an aperture of 72mm, a focal length of 400mm and a focal ratio of f/5.6, providing a 44mm image circle. The FRA400 quintuplet astrograph has adopted modern optical design...
SharpStar
Askar FRA 500 Quintuplet APO Astrograph (F... $2,549.95
Sharpstar Optics introduces Askar FRA500 astrograph, which is the youngest among the FRA family well-known to our customers. Compared with its siblings, the 500mm-focal-length refractor has an aperture size of 90mm (f/5.6), so Askar FRA500 can better fit into the scenarios of deep-sky imaging than the Askar FRA400. Besides, it is more lightweight and compact than Askar FRA600, which makes it a great choice for out-door observation or astrophotography. Description Askar FRA500 has inherited the legacies of superior FRA- series designing. It boasts a quintuplet air-spaced APO optical structure, a “three plus two” Petzval lens combination. The front lens group...
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SharpStar
Askar FRA 600 Quintuplet APO Astrograph (F... $3,339.95
Following the excellent optical performance of its first FRA400/5.6, the FRA600/5.6 is an evolution of the FRA series. An upgraded lens has a 108mm aperture and a 600mm focal length, the f/ratio is still f/5.6, and the image circle is 66mm surpass the full frame! Description This FRA600 Quintuplet Refractor is built on a Petzval design, comprising a front triplet and rear doublet lenses, two pieces of which are ED glass. This combination provides a high level of apochromatic performance for astroimaging. With wonderful optical design, the FRA600 astrograph provides a 66mm image circle to ensure excellent star shape across...
Celestron
Celestron 11" Rowe-Ackermann Schmidt Astro... $5,940.00
Capturing impressive deep-sky astroimages is easier than ever with Celestron's Rowe-Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today's top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won't need to accurately track over extended periods. The short focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required. Description RASA 11 V2 builds on the legacy of Celestron's Schmidt Cameras, which allowed astrophotographers to produce images with much shorter exposure...
Celestron
Celestron 8" Rowe-Ackermann Schmidt Astrog... $2,810.00
Capture spectacular wide-field deep sky images in seconds with Celestron's portable astrograph, the 8" Rowe-Ackermann Schmidt Astrograph (RASA). This incredibly fast f/2.0 system is the perfect companion to today's colour astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, it's easy to transport your 8" RASA to the most remote dark sky locations. Description RASA Performance Made for Everyone The 8" RASA is an imaging telescope that delivers a flat...
Celestron
Celestron Advanced VX 6" Newtonian Telesco... $1,790.00
The Advanced VX (AVX) sets a standard in mid-level telescopes, providing many of the features found on Celestron's most sophisticated German equatorial mounts at an extremely affordable price. Description The Advanced VX 6" Newtonian telescope is an excellent entry- to mid-level setup that can grow with you. The Newtonian optical design is excellent for visual observing and offers you the largest aperture for the price. The parabolic primary mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view. The Advanced VX mount is designed to provide superior performance for smaller telescopes while taking...
Celestron
Celestron Advanced VX 6" Refractor Telesco... $2,560.00
The Advanced VX (AVX) sets a standard in mid-level telescopes, providing many of the features found on Celestron’s most sophisticated German equatorial mounts at an extremely affordable price. The Advanced VX 6” refractor telescope offers no obstruction of the aperture and at a focal ratio of f/8, the telescope provides you the highest possible contrast when viewing celestial objects, especially the planets. The Advanced VX mount is designed to provide superior performance for smaller telescopes while taking advantage of Celestron’s most advanced technologies: All-Star Polar Alignment, Celestron PWI telescope control software, SkyAlign, and permanently programmable periodic error correction (PPEC). If...
Celestron
Celestron Advanced VX 8" EdgeHD Telescope ... $3,780.00
The Advanced VX (AVX) sets a standard in mid-level telescopes, providing many of the features found on Celestron's most sophisticated German equatorial mounts at an extremely affordable price. Description The Advanced VX 8" EdgeHD telescope combines the groundbreaking new Advanced VX mount with Celestron's best optics, the EdgeHD optical system. This setup offers the astroimager maximum versatility - allowing up to 3 different f-stop configurations. Users can attach a camera to the rear of the telescope and shoot at f/10 or attach our 8" EdgeHD focal reducer to shoot at f/7. Additionally, EdgeHD is Fastar/Hyperstar compatible, giving imagers the option...
Celestron
Celestron Advanced VX 8" Newtonian Telesco... $2,200.00
The Advanced VX (AVX) sets a standard in mid-level telescopes, providing many of the features found on Celestron's most sophisticated German equatorial mounts at an extremely affordable price. Description The Advanced VX 6" Newtonian telescope is an excellent entry- to mid-level setup that can grow with you. The Newtonian optical design is excellent for visual observing and offers you the largest aperture for the price. The parabolic primary mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view. The Advanced VX mount is designed to provide superior performance for smaller telescopes while taking...

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