Shutter
The shutter setting determines the amount of time per second that the sensor is exposed. The range of the
shutter speed setting is 1/25th of a second (40 milliseconds) to 1/10000th of a second (0.1 milliseconds). If you
shoot a video with a shutter time of 1/25th of a second, you can imagine that the video becomes blurry and
overexposed. The faster the shutter is set to open and close, the sharper your filmed object will become. However,
the amount of light that falls onto the sensor is also diminished.
If you are inexperienced or if the light conditions change a lot, it’s best practice to keep the camera on
the automatic exposure setting.
Iris
The Iris is a part of a lens that regulates the amount of light that passes through the lens and onto the sensor, by
altering the diameter of the hole through which the light enters. The diameter of the hole is measured in F-stop
value. A higher value lets in less light, while a lower setting lets in more light. This setting affects the length of the
depth of field. The higher F-stop you use, the deeper your depth of field. Reason: the smaller the aperture, the
more focused the light beams will be, resulting in a more focused image.
DRC
Dynamic Range Compression has a similar effect on the picture as the above mentioned gain limit. The DRC
works by compressing the natural dynamic range of the image by taking out the darkest and lightest parts. This
can be a particular helpful setting when the light conditions are challenging. The differences should be clearly
visible in dark parts of the image, as they will become lighter/more grey as the level of DRC increases.
SAE Mode (Shutter Auto Exposure)
The shutter speed is user-adjustable in this mode. The camera automatically decides the best Iris F-stop value for
an optimal exposure setting.
The shutter speed is the amount of time that each frame of the sensor has been exposed to light.
To compensate for poor lighting conditions, it is possible to adjust the DRC (Dynamic Range Compression). The
DRC works by compressing the natural dynamic range of the image, by taking out the darkest and lightest parts.
This can be a particular helpful setting when the light conditions are challenging. The differences should be clearly
visible in dark parts, as they will become lighter / more grey as the level of DRC increases.
AAE Mode (Aperture Auto Exposure)
The camera will automatically set the shutter speed based on the Iris F-stop value (aperture) set by the user. As the
camera determines the preferable shutter speed, it is possible to turn the anti flicker setting to the required 50Hz
or 60Hz to eliminate the effects of a shutter functioning at 1/50th of a second, for example. In this mode, both the
Gain limit and DRC are available to compensate for challenging light conditions.
Bright Mode
This mode is to try and create a decent image when the light conditions are exceptionally poor.
Figure 25: WebGUI > VIDEO > Camera Settings > Bright Exposure Mode
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