1.51X view magnification, make it easier to for you find excellent views and obtain accurate focus. Good helper for short-sighted / long sighted people (within 500°), enable view clearly without glasses. Premium quality anti-fog optical glass, do not create vignetting or affect brightness after inst..
1.51X view magnification, make it easier to for you find excellent views and obtain accurate focus. Good helper for short-sighted / long sighted people (within 500°), enable view clearly without glasses. Premium quality anti-fog optical glass, do not create vignetting or affect brightness after inst..