Kowa offers a
fixed, wide-field or wide-angle
30x eyepiece and is valid for the
TSN-660 (661 and 662) series,
TSN-600 (601 and 602) and also for the
TSN-82SV series.
The
wide field or angle is a very sought-after property in digiscoping, in order to increase the field of view offered by a standard angle.
Characteristics:
- Wide field of view 30x eyepiece (KOWA TSE-14WD).
- Field of view: 2.4º
- Apparent field of view: 72º
- Exit pupil diameter: 2.2mm (TSN-660); 2.0mm (TSN-600)
- Relative brightness: 4.8 (TSN-660); 4.0 (TSN-600)
- Eye distance: 20.0mm
- Field of view at 1000m: 41.9m