Hutech Astronomical Products
Equipment for the Serious Amateur Astronomer
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Telephoto Lens Set Specifications (see also System Diagram [PDF]):
  • Focal length: 250mm (fluorite)
  • F-ratio f/4.5
  • Length: 230mm
  • Weight: 530g
  • Includes parts 2555, 7602, 7758, 7604, 7205, and 7000

Part #6255
55FL Mini Borg Telephoto Set (black)
2018-01-03