Reflector sights have unlimited eye relief, meaning that the user may place his eye at any distance from the sight and the reticle will remain visible.
22.
The long eye relief makes red dot sights appropriate for firearms with heavy recoil that might drive a conventional short eye relief telescopic sight into the shooter's eye.
23.
The long eye relief makes red dot sights appropriate for firearms with heavy recoil that might drive a conventional short eye relief telescopic sight into the shooter's eye.
24.
The latter is more faithful to Cooper's Scout concept, and the Steyr-Mannlicher rifle can be ordered from the factory with a low-magnification Leupold scope with long eye relief.
25.
The optics problem is'eye relief'- you can't put a simple pair of screens into some glasses-your eyes don't like focussing down at one or two inches for long periods of time.
26.
Typical eye relief distances for telescopic sights are often between one and four inches ( 25 to 100 mm ), as opposed to the much shorter 15 to 17 mm for typical binoculars.
27.
The number of elements in a Nagler makes them seem complex, but the idea of the design is fairly simple : every Nagler has a negative wide field or long eye relief eyepieces.
28.
This optical design is now considered obsolete since with today's shorter focal length telescopes the eyepiece suffers from short eye relief, high image distortion, chromatic aberration, and a very narrow apparent field of view.
29.
Since this property affects the " available eye relief " of any binocular or other optics used, ( telescopes, microscopes, etc . ) it should be borne in mind at the eye testing stage.
30.
If the eye relief of a telescopic sight is too short, leaving the eye close to the sight, the firearm's recoil can force the optic to strike the skin around the shooter's eye, leaving a cut.
