CALIBRATE SENSOR: MANUAL CALIBRATION
The camera offers two (2) ways to calibrate the sensor: Manual Calibration and Auto Calibration. This section describes
how to calibrate the sensor with Manual Calibration.
When you start a Manual Calibration, the camera calibrates the sensor at the current exposure and temperature setting.
You will need to re-calibrate the sensor after extreme changes in exposure and temperature. The Manual Calibration
process takes several minutes.
MANUAL CALIBRATION PROCEDURE
To perform a Manual Calibration, follow the instructions below:
1. Ensure that the camera reaches the temperature that you want to use for your shoot.
2. Set the exposure to the exposure that you want to use for your shoot.
3. Ensure that the sensor is as dark as possible.
Preferably, take off the lens, and install the front body cap.
If you cannot take off the lens, put a lens cap on the lens. (Not all lens caps completely block IR. Lens caps are
made to protect the lens, not necessarily to block light.)
If possible, use a dark room.
Just closing the aperture is NOT sufficient.
4. Go to Menu > Settings > Maintenance > Calibrate > Sensor > Create > Manual.
5. Select how many calibration maps that you want to create from the Number of captures drop-down menu. You can
create up to four (4) calibration maps at a time.
6. Select the exposure that you want for each calibration map from the Capture drop-down menus.
7. Select Start Captures.
Figure: Manual Capture Settings
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RED RANGER GEMINI OPERATION GUIDE
