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A wide-field, high-performance Petzval astrograph, featuring SD glass elements for sharp images.
Description
This well-corrected instrument provides a short, 276mm focal length for wide images: about 7.2° with a full-frame camera, around 5° with APS-C imagers (ASI2600 series, Nikon DX, Canon Rebels, Sony A6xxx, etc.), and around 3.5° with 4/3 cameras (ASI294 series, Olympus and Panasonic mirrorless, etc. With its 6-element design (including two with Slow-dispersion glass), this scope delivers sharp images out to the edges of your field. The design also minimizes vignetting, delivering about 95% of the center's illumination at the far edges!
Specifications
| Parameters | ||
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Aperture size |
60mm |
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Focal length |
276mm |
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Focal ratio |
f/4.6 |
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Objective lens |
Sextuplet petzval APO (includes 2 pieces of SD glass ) |
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Total length |
283mm |
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Format specifications |
Full frame(44mm) |
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OTA weight |
2.79kg |
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Gross weight（including tube ring and dovetail plate） |
3.54kg |
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Rear-end thread type |
M48 adapter (with M48×0.75 filter thread) |
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Rear-end connection distance |
Support 41-66mm range (Recommended connection length is 55mm) |
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Standard package items |
a SQA60pro OTA, an Oxford cloth case |
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Product Size Diagram
Locking Screw Position Diagram
Electronic Focuser Assembly Diagram
阿强 | M81&M82 | Askar SQA60pro + ZWO ASI2600MC
阿强 | M81&M82 | Askar SQA60pro + ZWO ASI2600MC