Opticron HR3 Zoom Eyepiece - 41145
The Opticron HR3 zoom eyepiece is compatible with the HR, ES, MM3, MM4 and IS* spotting scopes (*requires adapter). This eyepiece features a twist-type eyecup and is supplied with a 5 year manufacturer's warranty.
Specification:
Apparent FOV (°) = 40-58.2
Eyerelief = 20-16mm
Eyelens diameter = 24mm
Length = 78mm
Weight = 222g