ARRI ALEXA 35 Body & PL Mount Set (LBUS) - Manual (Page 92)

Lens & Electronic Control System (ECS) 92
Lens Data Display in Camera
Lens data can be displayed as camera status overlays in the viewfinder and the SDI outputs. Single
overlays for focus distance, iris and focal length are displayed. For further information please see
"Configuration of Status Info Components" .
The camera can be configured to display either metric or imperial readings:
► Select
MENU > Lens & ECS > Focus Unit to set the desired focus unit.
Following options are available:
Lens Default
Imperial
Metric Focus unit is displayed according to the markings on the lens (requires LDS or Cooke /i lens).
Focus unit is displayed in Feet.
Focus unit is displayed in Meter.
Circle of Confusion
► Select MENU > Lens & ECS > Circle of Confusion to set the Circle of Confusion.
Following options are available:
0.009
0.013
0.025
22.2 Lens Data Archive
The Lens Data Archive (LDA) is an archive that contains lens tables. In combination with the lens
motor(s) these lens tables provide lens data for lenses without a lens data interface. The lens tables set
the raw motor encoder values in correlation to the actual lens scales. Once you choose the right lens
table from the Lens Data Archive and calibrate your lens motors, you get the same type of lens data
as an LDS lens would deliver. You can create your own lens tables for any given lens with the Hi-5 or
WCU-4 hand units and save them internally, externally to a memory stick, or in an iOS device with the
ECS Sync App. Lens tables can then be transferred wirelessly from the hand units to the camera.
Adding Lens Tables from the USB Medium
► Select MENU > Lens & ECS > Lens Data > Lens Tables Installed > ADD .
► Press IMPORT to import lens tables from a USB medium or DEFAULTS to select a lens table from
the internal lens tables default list.
► Select the desired lens table from the list and press IMPORT .
The lens table is imported to the camera's Lens Tables Installed list.
► To use the lens table, select the lens table from the Lens Tables Installed list and press SET .
Some lens tables contain different scale classes for the same lens model. The scale class of an
individual lens is engraved on the lens barrel. If required: select the corresponding scale class from
the list.
It is possible to load a lens table even when an LDS lens is attached. The LDA values calculated
from motor positions and lens tables take precedence over the values communicated by the lens
itself. This can be necessary if the lens data from the lens is faulty or imprecise.
As soon as an LDA table is activated, the LDS contacts of the lens mount are switched off,
indicated through the LDS icon on the HOME screen and in the Status Info.