106mm aperture, f/4.8 — a fast astrograph that pulls in detail quickly, ideal for shorter exposures on nebulae and galaxies 509mm focal length — a wide-to-medium field that frames large targets like the Andromeda Galaxy, the Pleiades, and the Cocoon Nebula Quintuplet Petzval APO optics — five-element design with a built-in field flattener, so you get pinpoint stars edge-to-edge with no separate flattener to buy Two SD (Special Dispersion) glass elements — suppresses chromatic aberration for tight, neutral, false-color-free stars Medium-format (55mm) image circle — fully covers a full-frame (44mm) sensor with room to spare for filter wheels and off-axis guiders Flexible back-focus — M48/M54/M68 adapters supporting a 48–78mm range (55mm recommended) to match most camera setups Lightweight for its class — 5.82 kg OTA (8.12 kg with tube rings and dovetail) Includes — SQA106 OTA and a padded Oxford cloth case The Askar SQA106 is a fast, travel-friendly astrograph built for one job: clean, wide-field deep-sky imaging straight out of the case. Its quintuplet Petzval design bakes the field flattener into the optics, delivering pinpoint stars across a flat medium-format image circle that fully covers a full-frame sensor — no separate flattener to buy or space. At 106mm and f/4.8, it's fast enough to pull real detail out of nebulae and galaxies in short order, with a 509mm focal length that frames large targets like the Andromeda Galaxy, the Pleiades, and the Cocoon Nebula beautifully. A built-in focuser and M48/M54/M68 back-focus flexibility make matching your camera train straightforward. At around 5.82 kg for the OTA, it's a genuine grab-and-go imaging rig for dark-sky trips — and one our team can help you pair with the right mount and camera before you buy. Product Introduction Specifications Parameters Aperture size 106mm Focal length 509mm Focal ratio f/4.8 Objective lens Quintuplet petzval APO（including two pieces of SD glass） Total length 516mm(when the dew shield is contracted) 586mm(when the dew shield is stretched) Format specifications Medium format(55mm),covers full frame(44mm) OTA weight 5.82kg Gross weight（including tube ring and dovetail plate） 8.12kg Rear-end thread type M48/M54/M68 adapters Rear-end connection distance Support 48-78mm range (Recommended connection length is 55mm) Standard package items a SQA106 OTA, an Oxford cloth case Product Size Diagram SQA106 Connection Diagram The Locking Screw Position Diagram SQA106 Electronic Focuser Assembly Diagram Images 东东锅 | NGC2237 | ASKAR SQA106 + ZWO 2600mm pro 东东锅 | M45 | ASKAR SQA106 + ZWO 2600mm pro 国产电灯泡 | NGC6888 | ASKAR SQA106 + ZWO ASI 6200MM Ralf Rohner | The Cosmic Squid | ASKAR SQA106 + ZWO ASI 1600MM Pro Mr.TianXingZhe | ic5146 | ASKAR SQA106 + ZWO ASI2600MC Drew Evans | M31 Andromeda Galaxy | ASKAR SQA106 + 2400mc Pro full frame OSC
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