4. Web-based Interface
NCR875E(H)/NCR875PRO(H)
l
User Manual 25
• Object Targeted:
This option meters the exposure based on the targets you specify. When this
option is selected, define your target by clicking squares displayed on the image and then press
Save
Spot Window
to save the setting.
EV:
In a scene with predominantly light or dark areas, the image will be underexposed or overexposed,
causing an image to be too dark or bright. In such situations, you can adjust a compensation value to
optimize the exposure. Decrease the value if images appear too light (overexposed). Increase the value if
images are too dark (underexposed).
Max/Min. Exp:
Select the maximum / minimum exposure time according to the light source. The
selectable value will change according to the frequency setting under
Image
>
Basic Settings
.
Sensitivity:
Select how sensitive the camera reacts to the light. A higher value enables the camera to be
more sensitive to the light conditions and adjust the exposure in the shortest time interval.
Max Gain:
Specify the maximum amount of amplification applied to the image. A high level of gain allows
images to be viewable in very low light, but will increase the image noise.
Manual Exposure Settings
Exposure Time:
Enter a desired exposure time.
Gain:
Select a gain value from 0 to 16. A high level of gain allows images to be viewable in very low light,
but will increase image noise.
Auto IRIS Mode
Select Auto IRIS Mode to configure the exposure settings with the auto iris control enabled.
Method:
Select which area of the image will be used to measure the amount of light to achieve best
exposure.
• Center Weighted:
Exposure metering is averaged over the entire frame but the emphasis is placed
on the central area.
• Object Targeted:
Define your target by clicking squares displayed on the image and then press
Save
Spot Window
to save the setting.
EV:
Decrease the value if images appear too light (overexposed). Increase the value if images are too dark
(underexposed).
Convergence Speed:
Select the lens’ convergence speed from the drop-down list. Higher the convergence
speed, the faster the lens iris opening responds to changes in light levels.
