Optical Sight Lens

- Jun 23, 2017 -

The main function of optical sight is to use optical lens imaging to overlap the target image and the sight line on the same focusing plane, even if the eye is slightly offset, it will not affect the aim point. Usually the optical sight can enlarge the image multiples, and there is no magnification of the optical sight lens. And the magnification of the sight can be divided into fixed multiples or adjustable multiples, such as 4¡á28 refers to the objective lens diameter of 28 mm, fixed magnification 4 times times the sight, 3-9x40 is the objective lens 40 mm, adjustable magnification from 3 times times to 9 times times the sight.


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