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High-quality quintuplet air-spaced SD glass Petzval Astrograph.
Product introduction
Specifications
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Parameters |
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Aperture size |
85mm |
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Focal length |
408mm |
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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 |
403mm(when the dew shield is contracted) |
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Format specifications |
Full-frame |
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OTA weight |
3.64kg |
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Gross weight（including tube ring and dovetail plate） |
4.62kg |
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Rear-end thread type |
M48/M54/M68 adapters |
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Rear-end connection distance |
Support 40-70mm range (Recommended connection length is 55mm) |
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Standard package items |
a SQA85 OTA, an Oxford cloth case |
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Product Size Diagram |
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The Locking Screw Position Diagram |
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SQA85 AFkit Electronic Focuser Assembly Diagram |
