Askar SQA106 Telescope 106mm Aperture F4.8 Quintuplet Air-Spaced SD Glass Petzval Astrograph Refractor OTA, for Deep Sky Astrophotography and Visual Astronomy
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Discover Unmatched Clarity with the SQA106 Quintuplet Air-Spaced Astrograph
Elevate your astrophotography with the SQA106, a premium quintuplet air-spaced lens system designed for precision and performance. Featuring two pieces of SD glass, this advanced optical system delivers razor-sharp star points with an RMS radius of less than 1.7 μm at the center and under 2.2 μm at a 55mm image circle. Whether capturing wide-field deep-sky objects or intricate star clusters, the SQA106 ensures super-fine star points, exceptional full-field illumination, and outstanding MTF data—making every shot a masterpiece.
Designed for convenience, the SQA106 boasts an integrated self-flattened design, eliminating the need for additional flatteners or complex back-focus calculations. Simply focus your OTA between 48mm and 78mm connection distance, and you’re ready to shoot. The telescope also features dual finder bases on both sides of the focuser, allowing effortless repositioning of your finderscope without disassembly while providing extra mounting space for accessories.
Precision meets durability with the large 2.8-inch dual-speed rack-and-pinion focuser, compatible with most motorized focusers on the market. The 30mm focusing travel and high-precision engraved scales ensure pinpoint accuracy, while CNC machining and anti-reflective internal coatings minimize stray light for pristine images.
Versatility is key—the SQA106 comes equipped with multiple threaded adapters (M68, M54, M48) featuring ribbed grips for easy manual adjustments without slippage. Attach full-frame cameras or other accessories effortlessly to expand your creative possibilities.
Priced at $3,507, this astrograph offers professional-grade optics and engineering without compromise—perfect for serious astrophotographers seeking unparalleled performance straight out of the box. Capture the cosmos in breathtaking detail with the SQA106—your gateway to celestial perfection.
Key Features
- ▶Quintuplet air-spaced lens design, including 2 pieces of SD glass. The SQA106 supports a 55mm image circle. The central star point has an RMS radius of less than 1.7 μm,and the star point at 55 mm is less than 2.2 μm, showing a super-fine star point. lt also has excellent full-field illumination and MTF data. The relative illumination can be higher than 90% at 44mm image circle.
- ▶Integrated self-flattened design, no need for additional flatteners, and no need for additional calculation of the back focus.Between 48mm and 78mm connection distance, users can directly use it for shooting after the OTA is in focus.
- ▶On both sides of the focuser, there are two finder bases, which not only eliminate the need for disassembling when changing the position of the finderscope but also provide additional mounting positions for other astronomical accessories
- ▶Dual-speed rack and pinion large 2.8-inch rigid focuser, which can be compatible with most motorized focusers on the market. The focusing travel is 30 mmand the focuser tube is engraved with high-precision scales. The entire focuser barrel is CNC machined with an anti-reflective internal design and matting paint providing extra measures to eliminate stray light.
- ▶The end of the SQA106 is equipped with various adapters, all of which are toothed and ribbed,making it easy to rotate manually without slipping.The adapters are available in sizes M68 M54, and M48 and can be used to attach various accessories, such as full-frame cameras
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