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Askar SQA55 55mm f/4.8 Quintuplet Astrograph Deep Space Telescope for deep space astrophotography.Effective caliber: 55mmFocal length: 264mmFocal ratio: F4.8Objective type: Five piece fully separated Petzval APO (one piece is SD glass and the other is ED glass)Imaging circle: 44mmAperture blades: 14 piecesGraded aperture: F4.8-F22Nearest focusing distance: 5mFocusing method: Manual focusingFilter diameter: M67Total length: 316mm (with light shield) 244mm (without light shield)Condition: Untested, As-Is.
| Category | Toys & Collectibles > Other |
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