ARRI ALEXA 35 Body & PL Mount Set (LBUS) - Manual (Page 97)

Lens & Electronic Control System (ECS) 97
ADVICE
Heavy Lenses may affect the flange focal depth!
Using lenses above 3 kg / 6.6 lbs without a proper lens support can put stress on the lens
mount and affect the flange focal depth.
Always use a suitable lens support for lenses weighing more than 3 kg / 6.6 lbs.
Lens change on the LPL mount, the PL mounts as well as the PL-to-LPL Adapter works the
same way. The description below shows an LPL mount.
► When removing a lens, hold the lens securely.
► Turn the bayonet ring (1) anticlockwise until it stops.
► Gently remove the lens / lens port cap from the lens
mount.
1
► Carefully insert the lens into the lens mount. Align the
notch in the lens flange (1) with the index pin on the
lens mount (2), keeping the lens rotated into a position
where the lens markings are visible from either side of
the camera.
► When attaching an LDS lens, make sure it is oriented
so that the LDS contacts of the lens and lens mount (4)
meet (12:00 position). Do not touch the LDS contacts.
► Carefully press the lens flange flat onto the lens mount.
► Turn the bayonet ring (3) clockwise until the lens is
locked securely.
1
2
3
4
22.6 EF Lens Iris Adjustment
When using EF Mount and EF lenses, the aperture of the lens can be controlled from the camera
menu. This option is only available when the camera is equipped with an EF Mount. Furthermore, the
iris of EF lenses can be controlled using the ARRI Master Grips or the Operator Control Unit OCU-1.
► Select
HOME > EI > Iris .
► Rotate the jogwheel to open or close the iris of the EF lens. Press the jogwheel to toggle between
full stops and sub stops.
Info: Sub stop precision depends on the lens type and is automatically set by the camera.
User Buttons EF Close Iris and EF Open Iris support to quickly adjust the iris of an EF lens.