It weighs 0.5 kg, offers 2.8?magnification with a field of view of 13?and 32 mm eye relief.
12.
It weighs 0.8 kg, offers 4?magnification with a field of view of 8?and 35 mm eye relief.
13.
Eyepieces also offer varying fields of view, and differing degrees of eye relief for the person who looks through them.
14.
Erfles are very popular because they have large eye lenses, good eye relief and can be very comfortable to use.
15.
For example a rifle scope needs a very long eye relief to prevent recoil from causing it to strike the observer.
16.
Since Reflector sights are not dependent on eye relief, they can theoretically be placed in any mechanically-convenient mounting position on a weapon.
17.
This is especially the case for spectacle wearers, who may need up to 20 mm of eye relief to accommodate their glasses.
18.
In his words " Like a circus company I have toured all over India since 1943 to provide free eye relief service.
19.
Hand held models will be 5?to 7?but with very large prism sets combined with eyepieces designed to give generous eye relief.
20.
For presentations or eye relief, you can use the port extender to connect the Libretto to standard monitors that surrealistically dwarf the Lilliputian computer.
