Specifications

RED EPIC OPERATION GUIDE

955-0002_v4.0, Rev-A | 146

To calibrate the sensor the image needs to be as dark as possible:

At a minimum put a lens cap on the lens (WARNING: Not all lens-caps completely block IR. Lens caps are

made to protect the lens, not necessarily to block light.)

Preferably, take off the lens, and use the lens-mount cap provided by RED.

If possible, use a dark room.

Just closing the Iris is NOT sufficient.

Additionally a SSD needs to be inserted in the camera to store the raw images during calibration.

Calibration is required:

If the temperature deviates significantly from the currently used calibration, it is recommended to recalibrate

the sensor.

If very long exposure (~longer then 1/24 Sec) is used, it is recommended to recalibrate.

After Calibration with a lens cap on and ISO set to maximum, the sensor should show a uniform noise profile

over the whole area without any falloffs on any side. You can check at which temperature/exposure time the

currently used calibration was taken on under SETTINGS > MAINTENANCE > SYSTEM STATUS under

Calibration.

Calibration maps will still be available after performing a system restore under SETTINGS > MAINTENANCE

> RESTORE SYSTEM; however the factory calibration map will be reselected.

CURRENT CALMAP

Calibration maps are stored in the camera. Due to the nature of the camera, different calibration maps are

needed for different situations.