Technical data

Version 3.0

135

• 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.

Factory

This the calibration map generated during production. This map is always present and selected as

default on first use after performing a system restore under SETTINGS > MAINTENANCE > RESTORE

SYSTEM.

User HS

The user can select the CURRENT CALMAP. The dialog only show the calmaps stored in memory

(FACTORY and USER HS in this case).

BLACK SHADING (DEFAULT)

This option uses fixed settings which are the same used for the factory calibration (around 23 Deg C).