Askar SQA60 Pro

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A high-performance sextuplet, air-spaced Petzval astrograph featuring SD glass elements. Specifications Parameters Aperture size 60mm Focal length 276mm Focal ratio f/4.6 Objective lens Sextuplet petzval APO (includes 2 pieces of SD glass ) Total length 283mm Format specifications Full frame(44mm) OTA weight 2.79kg Gross weight（including tube ring and dovetail plate） 3.54kg Rear-end thread type M48 adapter (with M48×0.75 filter thread) Rear-end connection distance Support 41-66mm range (Recommended connection length is 55mm) Standard package items a SQA60pro OTA, an Oxford cloth case Show more