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al4video  
#1 Posted : Monday, October 5, 2020 2:03:56 AM(UTC)
al4video

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Not sure if anyone is using a Sony FDR-AX700 but I just purchased one and it's an awesome camera with great auto focus. My problem is when using it as a camera input into vMix at 4k 30p it has a video delay of about 5seconds, really bad. I do not have this problem when I output 1080p from the camera. I also have a Sony AX53 outputting 4k perfectly into the same BM card with no lag.

I am using Acer Predator laptop with plenty of power and a RTX70 card. An abundance of ram and cpu power as well. The cards are located in a Sonnet box connected by TB3.

Any suggestions?
RJF  
#2 Posted : Tuesday, January 10, 2023 5:43:14 AM(UTC)
RJF

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Hi !
It may come from the capture card.
Have a look at this video comparing Elgato 4k to Magewell Gen 2 (2 times more expensive) :

Put subtitles/translation in english : around 3:00 the guy explains why there's latency with one of these 2 capture cards.
Cheers.
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