BORG 107FL F3.9ED Astrograph
ITEM #
BG-B10739F
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- Telescope Aperture: 107mm
- Telescope Focal Ratio: f/3.9
- Feathertouch True 3″ focuser
- Covers sensor diagonals up to 55mm
DESCRIPTION
BORG 107FL F3.9ED Astrograph
The BORG 107mm F3.9 Astrograph is a very unique 4" portable telescope. Boasting a small size for easy transportation (including airline and overseas expeditions), this astrograph is the perfect telescope for those needing a portable, high-quality optical tube.
- 107mm aperture
- 6-element advanced Petzval optical system, including one fluorite and one ED elements
- Covers up to a 55mm diagonal sensor
- Japanese-made high quality carbon fiber tube
- Feathertouch True 3″ focuser (FTF3215B-A)
- M57 camera rotator included
- Back focus : 60mm from M57 camera rotator thread
- 21″ long carrying bag
- Fits 115mm ID mounting rings (optional)
SPECIFICATIONS
Aperture107 mm (4.21")
Back Focus80mm
Corrected Image Circle55mm
Dawes Limit1.08 arcseconds
Focal Length417 mm
Focal Ratiof/3.9
Hightest Magnification214x
Light Gathering Power234x
Limiting Magnitude13.9
Optical DesignPetzval
Tube Length445mm
Tube Weight9.5 lbs
INCLUDED ITEMS
- BORG 107FL F3.9ED Astrograph Optical Tube
- Feathertouch True 3″ focuser (FTF3215B-A)
- 21″ long carrying bag
- M57 camera rotator
QUESTIONS & ANSWERS
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