Transforms the VSD100 F3.8 into an even faster astrograph with 300 mm focal length at 1:3.0 aperture ratio for extremely short exposure times
- Focal reducer, V-0.79 for VSD100 F3.8 astrographs
- Reduces the focal length to 300 mm, F3.0
- Illumination ?44 mm (compatible with 36x24 full-frame)
- Premium AS coating
- Enables use of extremely short exposure times
- Weight: 330 g
- Made in Japan
- Reduction: 380 mm (F3.8) => 300 mm (F3.0)
- Illumination: ?44 mm (compatible with 36x24 full-frame) *69.3% illumination at lens edge
- Coating: AS coating
- Optical structure: 3 elements in 3 groups
- Weight: 330 g
- Filter: 58 mm filter thread
- Thread: M84, P=1 mm (telescope/male); M60, P=0.75 mm (camera/female)
- Prime-focus photography wide photo adapter, 60 mm or T-ring (N)
- Squaring: Squaring adjustment system, built-in
- VSD reducer
Colour: | black |
---|---|
Material: | Aluminium |
Zubehör
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