This system has intrinsic parallel characteristic owing to its stepper exposuremode, therefore it can improve the manufacturing speed and precision of gray-scale masks with low cost.
Fixes a phenomenon in which the aperture exhibits abnormal movement when shooting movies in manual exposuremode and aperture Priority AE (Av mode) using some Canon lenses (such as macro lenses).
修正了相机于手动或光圈先决模式拍片时，镜头光圈出现异常动作的问题(如微距镜头)。
3
Even an unfamiliar SLR camera can produce rotten shots. Be sure to set your camera to Bulb mode for maximum exposure.