Exposure Compensation

Exposure compensation is a function which offsets the internal reference brightness level used in the AE mode by steps of 1.5 dB.

Data

Step

Setting value

 

 

 

0E

7

10.5 dB

 

 

 

0D

6

9 dB

 

 

 

0C

5

7.5 dB

 

 

 

0B

4

6 dB

 

 

 

0A

3

4.5 dB

 

 

 

09

2

3 dB

 

 

 

08

1

1.5 dB

 

 

 

07

0

0 dB

 

 

 

06

–1

–1.5 dB

 

 

 

05

–2

–3 dB

 

 

 

04

–3

–4.5 dB

 

 

 

03

–4

–6 dB

 

 

 

02

–5

–7.5 dB

 

 

 

01

–6

–9 dB

 

 

 

00

–7

–10.5 dB

 

 

 

Aperture Control

Aperture control is a function which adjusts the enhancement of the edges of objects in the picture. There are 16 levels of adjustment, starting from “no enhancement.” When shooting text, this control may help by making the text sharper.

Back Light Compensation

When the background of the subject is too bright, or when the subject is too dark due to shooting in the AE mode, back light compensation will make the subject appear clearer.

Slow Shutter – Auto/Manual

When the Slow Shutter is set to “Auto,” this ensures that the slow shutter is engaged automatically when the brightness drops. This occurs only when the AE mode is set to “Full Auto.”

“Slow Shutter Manual” is the factory setting.

ICR (IR Cut-Removable) Mode

An infrared (IR) Cut-Filter can be disengaged from the image path for increased sensitivity in low light environments. The ICR will automatically engage depending on the ambient light, allowing the camera to be effective in day/night environments.

Basic Functions

Auto ICR Mode

Auto ICR Mode automatically switches the setting needed for attaching or removing the IR Cut Filter. With a pre-set level of darkness, the IR Cut Filter is automatically disabled (ICR ON), and the infrared sensitivity is increased. With a pre-set level of brightness, the IR Cut Filter is automatically enabled (ICR OFF). Also, on systems equipped with an IR light, the proper decisions are made to avoid inappropriate operations.

The following three threshold levels are available to switch the ICR ON or OFF.

•1st threshold level

•2nd threshold level

•3rd threshold level

Threshold level at which ICR is switched from ON to OFF:

1st threshold level: The VISCA command allows you to set this level.

2nd threshold level: Fixed value

Threshold level at which ICR is switched from OFF to ON:

3rd threshold level: Fixed value

When ICR is OFF

When the iris opens, and the light is darker than the maximum AGC value, ICR is switched from OFF to ON. (Refer to the figure below)

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