OTA · 2009–
Vixen ED80Sf
Key specifications
| Aperture | 80 mm |
|---|---|
| Focal length | 600 mm |
| Focal ratio | f/7.5 |
| Optical design | ED Doublet |
| Weight | 3.4 kg |
About
80mm f/7.5 SD/ED-glass doublet apochromatic refractor; compact photo-visual tube often bundled on Porta II.