EverFocus EHD320 User Manual

Page 13

BLC (Back Light Compensation) On/Normal

When BLC is turned on, the AGC, ES and IRIS operating point is

determined by averaging over the center area instead of entire field-of-view,

so that a dimly-lit foreground object at center area can be clearly

distinguished from brightly-lit backgrounds.

BLC should not be used unless it is needed to compensate for back-lit.

The default setting is Normal.

FL (Flickerless Function) On/Normal

When picture flicker fiercely, turn FL on, then the camera will stabilize the

speed of electronic shutter at 1/100(NTSC) or 1/120(PAL) automatically,

and reduce the flicker immediately.

The default setting is Normal.

ES (Electronic Shutter) Off/On

ES ON: The camera continuously adjusts the shutter speed from 1/60

(NTSC), 1/50 (PAL) second to 1/100,000 second according to the

luminance conditions of the scene.

ES OFF: The shutter speed is fixed at 1/60 (NTSC), 1/50 (PAL) second.

Set ES OFF, when auto iris lens is used or flicker is observed under a very

bright fluorescent lamp. Otherwise, turn ES on for optimum performance.

The default setting is ON.