FC-100DF Doublet Fluorite APO
Takahashi
From $2,300.00
3 stores
In stock
The FC-100DF is an apochromatic fluorite Steinheil doublet refractor with a 100 mm objective diameter and 740 mm focal length at f/7.4. It features an enhanced 2.7-inch focuser and a shorter tube length that provides additional back focus for digital imaging applications. The front element uses eco-glass for maximum light transmission, with a coated fluorite rear element for superb color correction. The FC series provides outstanding performance both for the visual observer and the digital imager.
Specifications
| Focal ratio | f/7.4 |
| Optical Tube Diameter | 95 mm |
| Focal length | 740 mm |
| Weight | 3.6 lb |
| Optical Tube Length | 785 mm |
| Aperture | 100 mm |
| Back Focus Distance | 223 mm |
| Focuser Diameter | 50.8 mm |
| Dew Shield Diameter | 124 mm |
| Focuser Type | Rack and Pinion |
| Optical design | Steinheil Doublet Fluorite APO |