Tele Vue's 17mm ETHOS is an ideal complement to the 31mm Nagler Type-5. They are parfocal (both have focus locations about 3/8" above shoulder) and the 31mm Nagler Type-5 has exactly twice the true field area.
|Focal Length (mm)||17|
|Barrel Size (in.)||2"|
|Apparent Field of View (deg.)||100|
|Eye Relief (mm)||15|
|Weight (lb / oz)||1.55 / 24.8|
|Field Stop (mm)||29.6|