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Astro Hutech

BORG 90FL F3.9ED Astrograph Set

BORG 90FL F3.9ED Astrograph Set

$3,999.00 USD
$3,999.00 USD
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BORG 90FL F3.9ED Astrograph Set  Specifications
  • 90mm CANON Fluorite
  • Focal length : 350mm
  • F-ratio : 3.9
  • 6-element optical system, including one fluorite and one ED
  • 55mm image circle
  • 80.0mm backfocus (60.0mm from 7352)
  • Illumination : 82% full frame / 77% 55mm diagonal sensor
  • Feather Touch Focuser (FTF-3215B-A) as standard
  • Physical length : 365mm
  • 3.6kg
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