Sensor Calibration

Sensor calibration, also known as black shading, is a process during which the camera optimizes image quality by ensuring that pixel sensitivity remains consistent throughout the sensor. Calibrating the sensor generates a calibration map based on system and environment settings. After calibration, the sensor shows a uniform noise profile over the whole area without any falloffs on any side.

The camera offers two (2) ways to calibrate the sensor:

• Manual Capture: For more information, go to Calibrate Sensor: Manual Capture.
• Auto Capture: For more information, go to Calibrate Sensor: Auto Capture.

NOTE: Calibration maps are still available after performing a system restore.

Check Noise Profile

To check the current noise profile, follow the instructions below:

1. Ensure that the camera reaches the temperature you want to use for your shoot.
2. Set the exposure to the exposure you want to use for your shoot.
3. Put a lens cap on the lens (if a lens is attached) or a front body cap on the camera (if a lens is not attached).
4. Set FLUT or Exposure Adjust to 8.000. For more information, go to ISO Menu .
5. Check the noise that displays on the monitor:
   • The noise is random, with no fixed patterns or lines. The sensor is calibrated.
   • The noise has patterns or lines. Calibrate the sensor.

When to Calibrate Sensor

Calibration is required:

• After an extreme change in temperature (+/– 30°F or +/–15°C) from the current calibration map.
• After an extreme change in exposure time (+/– 1/2 sec) from the current calibration map.
• If either the T or E in the CAL: T/E indicator is not green.
• If the noise profile shows patterns or lines. For more information, go to Check Noise Profile.
• After each firmware upgrade.

To check the temperature/exposure of the current calibration file, go to System Status.