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- 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 | ||
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Aperture size |
106mm |
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Focal length |
509mm |
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Focal ratio |
f/4.8 |
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Objective lens |
Quintuplet petzval APO（including two pieces of SD glass） |
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Total length |
516mm(when the dew shield is contracted) |
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Format specifications |
Medium format(55mm),covers full frame(44mm) |
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OTA weight |
5.82kg |
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Gross weight（including tube ring and dovetail plate） |
8.12kg |
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Rear-end thread type |
M48/M54/M68 adapters |
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Rear-end connection distance |
Support 48-78mm range (Recommended connection length is 55mm) |
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Standard package items |
a SQA106 OTA, an Oxford cloth case |
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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