関連ワード:  does shutter count matter    does shutter count matter on a mirrorless camera    does shutter count matter for mirrorless    does shutter count matter for video    does shutter count matter when buying a used camera    does shutter count matter for dslr    does shutter count matter on a camera    does shutter count matter on nikon z8    does shutter count matter on electronic shutter    does shutter count really matter