RED DSMC DRAGON, Operation Manual

Page: 98 / 197

COPYRIGHT © 2014 RED.COM, INC
RED DSMC OPERATION GUIDE
955-0020_V5.2, REV-G | 98
CALIBRATE
The Calibrate menu includes: Sensor, Gyro/Acc, and Lens.
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. Black shading 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.
For more information, see the
Black Shading Calibration article available at www.red.com/learn/red-101/black-
shading-calibration .
NOTE: Calibration maps will still be 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 BRAIN (if a lens is not attached).
4. Go to
Menu > Settings > Look > FLUT .
5. Set FLUT to 8.000 .
6. 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. For more information, go to “Calibration Capture
(Black Shading)” on page 98 .
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” on page 98 .
For EPIC DRAGON or SCARLET DRAGON: After each firmware upgrade.
For EPIC MYSTERIUM-X or SCARLET MYSTERIUM-X: After a firmware upgrade if instructed to do so in the
firmware release notes.
To check the temperature/exposure of the current calibration file, go to Menu > Settings > Maintenance > System
Status > Calibration .
CALIBRATION CAPTURE (BLACK SHADING)
Not including preparation time, the calibration procedure takes several minutes. To perform black shading,
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. 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