High-quality 25x fixed long eye relief eyepiece.
Compatible with the following current Kowa System S spotting scopes:
TSN-601/602 | TSN-663M/664M | TSN-82SV
Compatible with the following historical spotting scopes:
TSN-603/604 | TSN-661/662/663/664 | TSN-1/2/3/4 |TS-601/602 |TS-611/612/613/614 | TSN-820/820M (requires TSN-EC1A adapter ring)
The specification below is based on TSN-660M series spotting scopes. Specification changes dependent on the spotting scope model.
Exit Pupil Diameter: 2.6mm
Eye Relief: 32.0mm
Field of view (degree): 2.1
Field of view at 1000m: 37m
Magnification: 25x LER
Relative Brightness: 6.8
Twilight Factor: 40.6
