Askar SQA85 f/4.8 Quintuplet Air-Spaced SD Glass Petzval Astrograph

High-quality quintuplet air-spaced SD glass Petzval Astrograph.

Product introduction

Specification:

Objective lens：Quintuplet petzval APO（including two pieces of SD glass）

Aperture size：85mm

Focal length：408mm

Focal ratio：f/4.8-

Format specifications：Full-frame

Total length：

403mm(when the dew shield is contracted)

439mm(when the dew shield is stretched)

OTA weight：3.64kg

Gross weight（including tube ring and dovetail plate）：4.62kg

Rear-end thread type：M48/M54/M68 adapters

Rear-end connection distance：Support 40-70mm range (Recommended connection length is 55mm)

Standard package items：a SQA85 OTA, an Oxford cloth case

Product Size Diagram

The Locking Screw Position Diagram

SQA85 AFkit Electronic Focuser Assembly Diagram

Images

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Product Display

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After extension

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