SQA106Product Introduction Specifications Parameters Aperture size 106mm Focal length 509mm Focal ratio f 4. 8 Objective lens Quintuplet petzval APOincluding two pieces of SD glass Total length 516mm(when the dew shield is contracted) 586mm(when the dew shield is stretched) Format specifications Medium format(55mm),covers full frame(44mm) OTA weight 5. 82kg Gross weightincluding tube ring and dovetail plate 8. 12kg Rear end thread type M48 M54 M68 adapters
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