Astro Hutech
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$4,749.00 USD
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BORG 107FL F3.9ED and ESATTO 3" focuser
Specifications
- 107mm CANON Fluorite
- Focal length : 420mm
- F-ratio : 3.9
- 6-element optical system, including one fluorite and one ED
- 55mm image circle
- 80.0mm backfocus without 7507 and 7352 (60.0mm from 7352)
- Illumination : 77% full frame / 68% 55mm diagonal sensor
- ESATTO 3" Focuser as standard
- Physical length : 450mm
- 4.3kg
- Test shot with Fuji GFX 100 (55mm diagonal sensor/100M pixels)
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