JVC VN-V686WPU User Manual

Page 43

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43

L

Shutter Speed

This item sets the speed of the electronic shutter.
When [Sense Up] item K is set to

Ax2B or above, available setting value is

A1/60B or A1/100B only.
[Setting values : 1/60,1/100,1/250,1/500,1/1000,1/2000,1/4000,1/10000]

Memo

:

● Flickering of fluorescent lightings can be reduced when the shutter speed is

set to

A1/100B or A1/60B respectively in regions of commercial power

frequency 50 Hz and 60 Hz.

● A smear phenomenon specific to CCD, where white bands appear vertically

along bright light source, is more emphasized the faster the shutter speed
is.

M

B/W Mode

This sets the function to switch from Color to B&W mode.
Color

: Always be in Color mode.

Black & White

: Always be in B&W mode.

Auto Low,Auto Mid,Auto High

: This item automatically switches between Color Mode and B&W

Mode when the luminance meets defined conditions over 30
seconds. Select the sensitivity from three options.

Memo

:

To ensure a successful B&W/Color switching

● If the [B/W Mode] item is set to AAuto Low, Auto Mid, Auto HighB, the B&W/

Color setting can be switched according to the brightness of the object, but
the condition of illumination and field angle may make this impossible. To be
absolutely certain of B&W/Color switching, connecting external sensor to
alarm input cable of this camera and setting alarm action of B&W mode is
recommended.

IR Preset AF

When switching the Color mode to B&W mode, the type of light source may
cause the focus to be dislocated. This is because the B&W mode is
sensitive to both visible light and near-infrared light. When this happens,
set this item to

AOnB to focus automatically.

On

: Enabled.

Off

: Disabled.

Light

This item sets the illumination of the object during B&W mode.
Normal : Select this for normal illumination.
IR

: Select this when using infrared illumination.

Memo

:

● If AIRB is set under normal sunlight or fluorescent lighting, the camera will

not switch normally from Color to B&W mode.

VN-V686WPU_EN.book Page 43 Friday, February 8, 2008 5:20 PM

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