FC-100DF f/7.4 Fluorite APO Refractor
Takahashi
From ~$2,365.55
2 stores
In stock
The Takahashi FC-100DF is a premium apochromatic fluorite doublet refractor optimized for astrophotography, featuring a 100mm objective and f/7.4 focal ratio. Utilizing the Steinheil optical design with an eco-glass front element and coated fluorite rear element, it delivers exceptional color correction and contrast for both imaging and visual observation. The DF model distinguishes itself with a 50.8mm (2.7-inch) rack-and-pinion focuser and shorter tube design that provides additional back focus for modern digital cameras, making it an excellent choice for astrophotographers seeking superior optical performance in a portable package.
Specifications
| Weight | 7.9 lb |
| Rear Element | Coated Fluorite |
| Focal length | 740 mm |
| Front Element | Eco-glass |
| Aperture | 100 mm |
| Optical design | Steinheil Fluorite Doublet |
| Focuser Type | 50.8mm Rack and Pinion |
| Features | Fixed dew shield, shorter tube length optimized for astrophotography |
| Focal ratio | f/7.4 |