Does the BM video Assist work with Arri Alexa

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Akpe Ododoru

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Does the BM video Assist work with Arri Alexa

PostMon Jul 18, 2016 7:05 pm

Has anyone tried the BM video Assist with an Arri Alexa? I did a shoot last week using the Arri alexa but couldn't use my Video Assist (1080p) with it.
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Nicolas Gril

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Re: Does the BM video Assist work with Arri Alexa

PostWed Nov 29, 2017 5:29 pm

So no answer for this? I need to know this ASAP also, please...someone from BMD can chip in? Thanks! :o
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Denny Smith

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Re: Does the BM video Assist work with Arri Alexa

PostWed Nov 29, 2017 6:20 pm

Should work. However, the VA can only accept a video signal up to UHD resolution, 4.2.2, 10-bit, which it will down convert to HD [code][/code]for display and recording. If you are trying to use a full 4K signal, and/or have a Frame rate greater than 60fps, then this is not going to work.

The Video Devices PixE will accept higher resolution (full 4K) 12-bit 4.4.4 video signals, record the set resolution and display it. If yiu need the signal down converted to HD from a 4K signal, that a up/down Converter is going to be needed, and Atomos is re-releasing their small Convert It up/down again, which will replace a NP battery on the PixE.
Cheers
Last edited by Denny Smith on Thu Nov 30, 2017 5:53 am, edited 2 times in total.
Denny Smith
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Dustin Svehlak

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Re: Does the BM video Assist work with Arri Alexa

PostThu Nov 30, 2017 1:30 am

I only used it for monitoring purposes but the Video Assist worked fine via ARRI Alexa for me. I have the 4K BMVA but I can't imagine that would make a difference. Were you trying any high speed formats?
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John Brawley

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Re: Does the BM video Assist work with Arri Alexa

PostThu Nov 30, 2017 3:18 am

I've used it many times. It works fine.

JB
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