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A6500 video new user - why is 4K saved as mp4?

workflow 4k Adobe Prelude

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#1 Nautonnier

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Posted 17 March 2017 - 12:48 PM

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Hello Everyone,

 

Just made the switch to Sony (A6500) from Canon and already drowning. Nothing in the manual or online to explain why 4k footage is saved as an mp4 file or am I doing something catastrophically stupid? If so could something put me right please? I thought this would be an XAVC-S codec.

 

This is the first time I have shot in 4K. Any help with regard to how I can use Adobe Prelude (CC) to extract footage and downscale to HD ready to edit in Adobe Premiere (CC) would be greatly appreciated. Fingers crossed that I am not the idiot I think I am and all is well.

 

Many thanks in advance.



#2 cws

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Posted 20 March 2017 - 03:04 AM

Not an idiot... you just need to look harder. :)
It's in the specs...  mp4 is just the container.  I don't use Adobe for editing, but would expect you could just open it with Premiere directly and output your HD from there, keeping best quality all the way along.

I use Resolve (free version) with 4K footage and/or HD footage... works just fine too.

 

What is XAVC S?

XAVC S is a subset format, using many of the superlative techniques and technologies used in XAVC, but intended for consumer products and workflows. It supports the 3840x2160 pixel version of 4K only, known as Quad Full HD, QFHD, UltraHDTV or UHDTV. XAVC S is a lighter codec with Long GOP compression and relatively small recorded file sizes. XAVC S also uses the .MP4 file wrapper for greater compatibility and suitability in consumer workflows.

 

from Sony specs:

VIDEO COMPRESSION XAVC S: MPEG-4 AVC/H.264,  AVCHD: MPEG-4 AVC/H.264, MP4: MPEG-4 AVC/H.264  



#3 Makeev

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Posted 20 March 2017 - 10:24 AM

 

This is the first time I have shot in 4K. Any help with regard to how I can use Adobe Prelude (CC) to extract footage and downscale to HD ready to edit in Adobe Premiere (CC) would be greatly appreciated. Fingers crossed that I am not the idiot I think I am and all is well.

 

 

If you just want to convert to HD then it's faster and easier to use Adobe Media Encoder




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