Canon VB-R12VE Network Camera Operation Guide - Page 115

* Using infrared illumination from an external device may throw the camera out of focus. You can use [Camera] > [Day/Night Mode Focus] > [Compensate for light source] to focus according to the wavelength of an infrared light (P. 120). H65x M64x H751 M74x [One-shot AF] Use when [Focus] is set to [Manual]. When you click [Exec], the camera will focus once using autofocus and then switch to manual. [Adjust Focus] If the [Focus] is set to [Manual], you can click and hold the [Near] and [Far] buttons to adjust the focus in the near and far directions. [Exposure] Selects an exposure mode. Note If [Auto] is selected in [Day/Night], select either [Auto], [Auto (Flickerless)], [Auto (Shutter-priority AE)] or [Auto (Aperture-priority AE)] for [Exposure]. [Auto] Automatically controls the exposure. [Auto (Flickerless)] Automatically adjusts the shutter speed according to the brightness of the usage environment. Video flickering caused by fluorescent lights, etc., is reduced. [Auto (Shutter-priority AE)] Automatically adjusts the aperture and gain according to the specified [Shutter Speed]. [Auto (Aperture-priority AE)] Automatically adjusts the gain and shutter speed according to the specified [Aperture]. [Manual] Manually set [Shutter Speed], [Aperture], and [Gain]. Cannot be set when [Smart Shade Control] is set to [Auto]. [AGC Limit] Select the Auto Gain Control (AGC) limit value for increasing gain to brighten video in low light conditions. The greater the value, the higher the sensitivity will become, but video noise will increase. Important • [AGC Limit] will not function if [Exposure] is set to [Manual] or [Auto (Flickerless)]. • Minimum subject illumination may change when [AGC Limit] is set. [Shutter Speed Limit (Lower)] If [Exposure] is set to [Auto], [Auto (Flickerless)], or [Auto (Aperture-priority AE)], a minimum shutter speed can be selected. [Shutter Speed Limit (Upper)] If [Exposure] is set to [Auto], [Auto (Flickerless)], or [Auto (Aperture-priority AE)], a maximum shutter speed can be selected. [Shutter Speed] If [Exposure] is set to [Auto (Shutter-priority AE)] or [Manual], you can fix the shutter speed. Note • Slower shutter speeds generate residual images in video when capturing a moving subject. • When capturing a moving subject, selecting a higher shutter speed can reduce blurry video capture. The table below describes the selectable range of shutter speed according to the setting for [Exposure]. [Exposure] [Auto] [Auto (Flickerless)] [Auto (Shutter-priority AE)] [Auto (Aperture-priority AE)] [Shutter Speed Limit (Lower)] [Shutter Speed Limit (Upper)] 1/2 - 1/16000 (sec.) 1/2 - 1/16000 (sec.)* 1/2 - 1/50 (sec.) 1/100 - 1/16000 (sec.) - - 1/2 - 1/16000 (sec.) 1/2 - 1/16000 (sec.)* [Shutter Speed] - 1/2 - 1/16000 (sec.) - Setting Page 5 115