P550c Operation Manual
6 Operating the system
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Camera iris control
On occasion, there may be a requirement for manual control of the iris to change the picture brightness
(e.g. to reduce reflections from a shiny surface). Manually opening the iris allows more light to enter the
camera giving a brighter picture. Closing the iris decreases the amount of light entering the camera
giving a darker picture.
The and control the camera’s iris. Pressing and holding either button continues the iris operation
in that direction. Pressing both buttons together resets the iris.
Note: The LED beneath the iris control buttons is not currently used.
Lighting control
The lighting control allows you to alternate and adjust intensity between camera lights, auxiliary lighthead
(if available) and no lights. Pressing both buttons together cycles round the available options.
Press the button to increase brightness and press the button to reduce it.
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