Mounts & AccessoriesVixen Telescope Focal Reducer V0.79X
Focal Reducer for VSD100 F3.8
Transforms VSD100 F3.8 to an even faster astrograph with 300mm in focal length at F3.0 (0.79x). Suitable for DSLR with a 35mm full-frame sensor (69% illuminated).
Features
Usable on #26145 VSD100 F3.8 OTA. Transforms VSD100 F3.8 to an even faster astrograph with 300mm in focal length at F3.0 (0.79x). Suitable for DSLR with a 35mm full-frame sensor (69% illuminated). Wide photo adapter 60mm or 60mm DX and T ring are needed separately for prime focus photography.
Specifications
- Usable Optical Tube: #26145 VSD100 F3.8 OTA
- Feature: Reduces focal length by 0.79x VSD100 F3.8 : Focal length 380mm (F3.8) → 300mm (F3.0)
- Lens Coating: AS Coating (99.9% light transmission coatings per lens surface)
- Prime Focus: Wide photo adapter 60mm or 60mm DX and T ring are needed.
- Weight: 330g / 11.64oz
- Others: With squaring adjustments, With 58mm thread for a commercially available filter
- ※ ※When you use this reducer, it may cause image dimming near the edge of the field.