IC Realtime The Sentinal WDR 36x Optical Zoom, 32x Digital Zoom IR PTZ Camera - Manual (Page 27)

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• AF LIMIT BW (limited operation of Auto Focus)
The auto-focus function may not operate normally under the following conditions;
When the background illumination is too low, or too high.
While Slow-Shutter is in operation.
If the Zoom level is set too high.
If a long distance object and a close distance object appear together within a
monitoring area.
If there is no contrast in the scene i.e. looking at the sky or a wall.
If the camera is pointed toward a thin horizontal line.
Auto Focus focuses on an object in the centre of the screen; objects around the screen
edges may not be properly in focus.
If the IR LED’s are ON and the Zoom Ratio is over 20x, the focus mode will be set to
manual, regardless of the focus mode settings, in order to stabilise the focus.
OFF: AF operates with the FOCUS MODE set in the FOCUS/ZOOM MENU on the OSD
ON: This function is useful when IR LED’s are ON and Zoom Ratio goes over 20x. FOCUS
MODE changes to MANUAL in this condition.
Caution
This function holds good when “TOUR, SEQ” is “ON” also.
If AF LIMIT BW is “ON” when IR is activated, AF will be operated as MANUAL FOCUS even
if FOCUS MODE under PRESET is set to “AUTO”.
2.5 AE
1. AE MODE AUTO/SHUTTER/MANUAL
2. IRIS CLOSE ~F1.6
3. GAIN 0 ~ 15
4. BRIGHTNESS 1 ~ 15
5. SHUTTER 1/50 ~ 1/100000
6. SLOW SHUTTER OFF / ON
7. FLICKERLESS OFF / ON
8. BLC OFF / ON
9. L-LUMINANCE OFF / ON
10. EXIT