User Manual

148 ALEXA SXT Plus
Fig. 52: Main LDA screen
To delete a lens table from the user archive, access the user list and press the
DELETE button. Select the lens table to delete and press the two buttons labelled
DELETE simultaneously.
Custom lens tables can be added to the main archive via the SD card. Place the lens
table on the SD card in a folder named "LDA". Insert the SD card into the camera. Go
to the main archive list and press ADD. Select the desired lens table and press the
wheel. The lens table will be located in the main archive as lens type "Custom".
It is possible to inverse the iris, zoom and focus scales for lens tables if necessary.
Press OPTIONS on the USER LDA screen to access the LDA OPTIONS screen,
where these adjustments can be made.
Lenses can also be equipped with the lens data mount LDM. The mount contains a
chip with the lens table stored inside, so the lens transmits its data to the camera as
soon as it is connected. For information on current ring positions, these lenses must
be used in combination with controlled lens motors.
CLM screens
The screens for IRIS, FOCUS and ZOOM controlled lens motors all have the same
layout. They show the motor type, motor direction, motor torque, and motor teeth
count mode.
NOTICE
For CLM-2 motors the torque value is greyed out as torque is only active for CLM-3,
CLM-4, CLM-4 Plus, or CLM-5 motors. It can nonetheless be changed in case a
CLM-3, CLM-4, CLM-4 Plus, or CLM-5 motor might be used but is currently not at
hand.
In addition, a lens motor calibration can be triggered, either for all lens motors, or only
for the one featured in the particular screen.
NOTICE
When starting a motor calibration, make sure each motor's gear wheel is connected
properly to the lens. Pay extra attention that no one is close to the motors or
holding them. Catching a finger, cloth or anything else on the motor's gear wheel
can cause severe body harm as well as damage to the system (and not to mention
hurt like hell).
The image below shows the FOCUS CLM screen: