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| Configuration |
Image colour |
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Preset image | Four types of specific application conditions such as Indoor, outdoor, | |
| tunnel and casino can be selected for a quick and easy setup. | |
EV Adjustment | 19 steps of offset level from | |
| reference brightness level. The higher the level the brighter the | |
| images, and the lower the level the darker the images. | |
Auto Gain Control | The circuit gain is adjusted automatically between Min. and the | |
| selected value, "Low," "Mid" and "High” where the sensitivity | |
| characteristic increases in the order of "Low," "Mid" and "High”. Noise | |
| at dark will be more noticeable when Auto Gain Control is near "High". | |
| NOTE: |
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| If sensitivity is still too low after setting Auto Gain control, set the high | |
| limit value of the slow shutter, to further increase sensitivity. | |
Shutter Speed | Default is: 1/25 s. The shutter speed is set at automatic, 1/25 s, 1/50 s, | |
| 1/120 s, 1/250 s, 1/1000 s and 1/10000 s. The network camera will | |
| adjust the aperture according to the amount of ambient light. | |
Slow Speed Shutter | The Slow shutter can be turned “ON” if the sensitivity is still not so | |
| good under “High” gain condition at dark. The optimum image level can | |
| be maintained by appropriate gain and shutter combination which are | |
| determined automatically inside camera system. | |
| As slow shutter activates, the exposure time becomes longer and | |
| frame rate becomes smaller. Blurred images sometimes are prominent | |
| with moving objects. | |
Back Light Compensation | Set an area for backlight compensation. If backlight compensation is | |
| activated, the camera performs the exposure control only within the | |
| specified area. | |
| Backlight compensation is a function that achieves the brightness of a | |
| selected area to an optimum image level. This function is necessary | |
| when an auto iris lens tends to close due to an intense light coming | |
| from the back of the object in the area to be viewed so that areas | |
| become dark and visibility deteriorates. In this case, set the area so | |
| that the portion to be viewed is within the selected area. The area size | |
| is roughly as shown in Fig. 2 below. | |
Sharpness | Set sharpness. | |
| “Sharp”: | sharpness is high. |
| “Soft”: | sharpness is low. |
Gamma | “1”: May be selected for some specific area, such as FA application for | |
| obtaining true video data. | |
| “0.45”: This is default, suitable for CCTV application | |
White Balance | Set the white balance values to meet the environment condition for | |
| best colour rendition. | |
| z “AWB”: the colour of the camera is automatically adjusted according | |
| to external lighting condition. | |
| z “Manual”: Adjustable by user manually, this is useful for some | |
| specific condition which AWB may be unaffordable to perform | |
| correctly. | |
| z “Indoor”: Default for 3200K condition | |
| z “Outdoor”: Default for 5100K condition | |
Iris Adjustment | 19 steps of offset level from | |
| level for a DC auto iris lens. The higher the level the brighter the | |
| images, and the lower the level the darker the images. |
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Siemens Building Technologies |
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Fire Safety & Security Products | 01.2009 |