OTA · 1990–1999
Vixen FL-55S
Key specifications
| Aperture | 55 mm |
|---|---|
| Focal length | 440 mm |
| Focal ratio | f/8 |
| Optical design | Fluorite Doublet |
| Weight | 1.5 kg |
All specifications
| Tube length | 380 mm |
|---|
About
55mm f/8 fluorite (CaF2) Steinheil doublet apochromatic refractor; smallest of the classic FL series.