AI, (Auto Iris) BLC, (Back Light Compensation) ATW, (Auto Trace White) MWB, (Manual White Balance) AWB, (Auto White Balance) SL, (Slow Shutter) AES, (Auto Electronic Shutter) AGC, (Auto Gain Control) MIR, (Mirror) Y/C (Luminance (Y) & Chromincance (C) Auto-iris allows the camera to control the lens iris to adjust for varying lighting conditions. There are often two related options as well, DC and Video - DC means the camera actually controls the iris, Video means the camera only supplies power to the lens, and a sensor in the lens controls the iris. Backlight compensation, to simplify, brightens the image so that dark objects can be seen in strong lighting conditions. This is most often used in instances where, say, the camera is facing a door where bright outside light will cause it to dim, and the lower indoor lighting means people (and particularly their faces) will simply be dark blobs. White balance allows adjustments for different "temperatures" of lighting. Incandescent ligh
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