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justinw74800426
justinw74800426
Participating Frequently
October 31, 2023
Question

Sony A7RV M Raw not supported with denoise?

  • October 31, 2023
  • 1 reply
  • 1606 views

Hi,

 

I noticed that .arw raw files shot with lossless compressed (M) size are not supported with Denoise in Lightroom Classic. These are shot with my A7RV. The full size (L) files work fine, it just seems to be the medium size (or maybe small too...haven't tested those yet). 

Is this a bug? Are these not supported by denoise? Will they at some point?

Thanks

    This topic has been closed for replies.

    1 reply

    GoldingD
    GoldingD
    Legend
    October 31, 2023

    Not a bug, just a current limitation, full size RAW only no compression.  Mentioned in the What is new documentation, etc.

     

      D Fosse
      Community Expert
      D FosseCommunity Expert
      Community Expert
      October 31, 2023

      I use an a7r V myself and have tested this before. Only full sensor resolution files are accepted by Denoise.

       

      It makes sense. Denoise requires mosaic data and doesn't work with demosaiced RGB files. Reduced size raws have to be demosaiced - otherwise the Bayer filter pattern would be all mangled up. The only way to make it work is to demosaic, then downsample.

       

      So:

      Uncompressed and lossless compressed L works.

      Lossless compressed M and S do not work.

      What they just call compressed (presumably lossy) does not work.

       

       

        S
        Steven24259982bx2o
        Participant
        October 1, 2024

        I'm not sure why "it makes sense," that Sony and Adobe can't figure out a way to make their software work together. I don't understand the tech details and would prefer to leave that to someone else, but Topaz DeNoise AI and Photo AI work just fine on Sony ARW medium lossless compression files. It would at least have been nice for Sony to be clear about the fact that their technology is not compatible with Adobe's: I now have hundreds of lossless compression (m) files that I wouldn't have shot had I known this in advance. And uncompressed files on the A7R5 now run upwards of 120M per file - a huge file size I don't necessarily have the storage capacity or budget to manage. I hope Sony and Adobe have a plan to fix this - and soon!

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