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ARRI

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Focus tracking issue

Hi all, for a long time I have an issue with the focus tracking with Wcu-4 and cinert. It doesn't work, it's super slow. And I see that if I use the UMC-4 with CLM3 motor it works perfect, if I use a Arri 435, cforce Rf, Lcube it works perfect, if I use Alexa Mini LF, cforce plus, lcube it doesn't works. Is it a issue with the Alexa Mini LF? I thought that the problem was the lcube but it works perfect with the 435, cforce Rf and lcube... Anyone can help me with this? thaks in advance.

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Jim McLean
Oct 22, 2022

If you're connecting directly to camera this is likely the issue. The motor controller dictates speed of Autofocus engaging. Cforce RF Motors & UMC-4 are immediate engage.

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