Askar SQA85 f/4.8 Quintuplet Petzval Refractor Telescope

High-quality quintuplet air-spaced SD glass Petzval Astrograph.   Product introduction Specifications Parameters Aperture size 85mm Focal length 408mm Focal ratio f/4.8 Objective lens Quintuplet petzval APO（including two pieces of SD glass） Total length 403mm(when the dew shield is contracted)439mm(when the dew shield is stretched) Format specifications Full-frame 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