ARRI Forum

Hi I'm shooting on a mini with 2 cforce RF motors daisychained through L-BUS.

I'm using the RIA-1+OCU as an iris control but everytime I connect it to the camera it seems to override my remote completely so that I can't focus.
Remote stays connected but there comes a cross over my focus bar.
I have the iris motor turned off in remote so that is not it.

Is there any fix for this or a sequence of pairing that I should use? Thank you very much.

Hi,

Note, there is a known issue for the software update package 2.0 of RIA-1:

Override issues with OCU-1 or Master Grips
Override is not always possible if an OCU-1 or Master Grip are used in combination with a RIA-1:
- Override is not supported for wireless control units. It is therefore not possible to use the override function of an OCU-1 or Master Grip if they are connected to a RIA 1 in client mode.
- It is currently not possible to use the override function when the RIA-1 is connected to an ALEXA Mini or ALEXA Mini LF camera with the optional LBUS – LBUS connection.
Workaround: Connect the RIA-1 to the camera only via CAM to EXT or set up the system that the corresponding axis is only controlled via the OCU-1 (disable that lens axis in the Hi-5 Menu > Control Setup).

Also make sure both cforce RF are used in Client mode and avoid CUB-1 in between, instead always put it at the end of the LBUS chain.

Feel free to contact us at service@arri.de where you get fast response from our team and we can analyze the setup in more detail.

all the best