即便你打算使用小光圈照相，带有最大光圈的镜头也可以在取景时大大增加取景器亮度。
Even if you intend to expose using a small aperture, a lens with a large maximum aperture can greatly increase viewfinder brightness.
亮度校正机能：近几年，对有特别的伽马设定的地方有多的情况用照相机被射击了的印象。
Gamma Correction Function: in recent years, there have been many cases where images shot with a camera have a special gamma setting.
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