Specifications
FRA600 Parameters | ||
Aperture | 108mm | |
Focal length | 600mm | |
Focal ratio | F5.6 | |
Objective type | Quintuplet flat-field APO (including two ED elements) | |
Image circle | 66mm | |
Back focus | 160mm (from the end of rotator M90x1 thread) | |
Overall length | 493mm | |
Total Weight (Including tube ring&dovetail plate) | 6.5kg | |
Standard packing weight | 7.8kg(not include Aluminum case) | |
Back-end adapter | M108x1 male thread (no rotator), M90x1 male thread, 2" adapter/ 1.25" adapter | |
Conical adapter | M90×1-M68×1-M54x0.75-M48×0.75 | |
Accessories | A pair of tube rings, a handle, a dovetail plate, sectional conical tube adapter (with M54X0.75 and M48x0.75 male thread), an |
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