Askar SQA85
Askar SQA85: High-Quality Quintuplet Petzval APO Astrograph Aperture and Focal Length: Features an 85mm aperture with a 408mm focal length, delivering a fast f/4.8 focal ratio ideal for wide-field astrophotography. Optical...
Askar SQA85:
High-Quality Quintuplet Petzval APO Astrograph
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Aperture and Focal Length: Features an 85mm aperture with a 408mm focal length, delivering a fast f/4.8 focal ratio ideal for wide-field astrophotography.
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Optical Design: Incorporates a quintuplet Petzval design with two SD (Super ED) glass elements, ensuring exceptional color correction and sharpness across the entire field.
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Full-Frame Compatibility: Designed to support full-frame sensors, providing a large image circle suitable for advanced imaging setups.
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Compact and Lightweight: Measuring 403mm in length (dew shield retracted) and weighing 3.64kg, it's portable and convenient for field use.
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Versatile Connectivity: Equipped with M48, M54, and M68 adapters, accommodating various camera and accessory attachments.
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Optimal Back Focus: Supports a back focus range of 40-70mm, with a recommended connection length of 55mm for optimal performance.
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Included Accessories: Comes with an Oxford cloth case for protection and easy transport.
The Askar SQA85 is a premium astrograph designed for astrophotographers seeking high-quality imaging performance in a compact and versatile package.
Specifications
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SQA85 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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