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??? ?? ??? ?? ?? ?? ???? ???? ??? ???? ????????? ??? ?? ?????? ???????? ??? ??????. ? ???? ???..??? ????? ?? ??? ????? ? ?? ????? ???? ?????.?? ? ??? ??? ??. ????? ???? ?? ????. ???, ???, ??? ? ????? ????, ??? ???? ???.The lens mount style and design is an important challenge for compatibility between cameras and lenses. There is absolutely no comm

Change lens enable the lens to be lifted or lowered relative on the film of sensor aircraft to right or exaggerate point of view distortion.?? ?????? ???? ? ??? ????? ??? ?????. (??? ??? ???? ? ??)A side impact of employing lenses of various focal lengths is the various distances from which a subject matter can be framed, resulting in a unique pers