The eye relief of an optical instrument (such as a telescope, a microscope, or binoculars) is the distance from the last surface of an eyepiece within...

optical performance, and had a relatively high mass of 1,020 g (36 oz). The eye relief was only 38 mm (1.5 in), so the sight was equipped with a rubber eyepiece...

is short eye relief compared to an orthoscopic, since the Plössl eye relief is restricted to about 70–80% of focal length. The short eye relief is more...

monocular, eye relief virtually never is (except, perhaps, to say "long eye relief" or "LER"). Early optics tended to have short eye relief, (sub-10mm)...

FG 42. Starting from 1941, the short 1.5× Zielfernrohr 41 (ZF41) long eye relief telescopic sight was fitted over the rear iron sight element to some Karabiner...

the greater the potential eye relief. Binoculars may have eye relief ranging from a few millimeters to 25 mm or more. Eye relief can be particularly important...

sights with extra long eye relief became available for use on handguns and scout rifles. A historic example of a long-eye relief (LER) telescopic sight...

degrees at 4× Entrance pupil diameter = 32 mm Exit pupil diameter = 8 mm Eye relief = 70 mm Specter DR 1.5–6× Length × width × height = 183 × 75 × 73 mm Weight...

positioning of a scope with normal 1.5–3.5 in eye relief or for the forward placement of an intermediate/long eye relief "scout scope". The latter is more faithful...

"lead sled" or similar shooting rest, and the rifle scope has significant eye relief to avoid injuring the ocular orbit.[citation needed] Barnes, Frank C....