Skip to main content
Jsaez
Jsaez
Participant
December 13, 2020
Question

ACR an HDR 32 bits

  • December 13, 2020
  • 3 replies
  • 845 views

Hello everyone.
When I do a 32 bit HDR Photoshop tells me if I want to go to Camera Raw to adjust the tones. It goes to ACR without problems, I make the adjustments and when I tell it to quit ACR, Photoshop flattens the layer and transforms it into 16 bits. I would like to keep the 32-bit version and also as a smart object. How could I do this?

    This topic has been closed for replies.

    3 replies

    B
    Boka2112
    Inspiring
    January 30, 2023

    Will this ever be updated?  Please.  Some of us need an easy workflow for HDR and this would be it...  If there was an option to keep it 32 bit!

    Jeff Arola
    Community Expert
    Jeff ArolaCommunity Expert
    Community Expert
    January 30, 2023

    If i'm not mistaken you can do your HDR Merge in ACR and using the new HDR mode keep the merge as 32 bit.

    https://helpx.adobe.com/camera-raw/using/hdr-output.html

      TheDigitalDog
      TheDigitalDog
      Inspiring
      January 30, 2023
      quote

      If i'm not mistaken you can do your HDR Merge in ACR and using the new HDR mode keep the merge as 32 bit.

      https://helpx.adobe.com/camera-raw/using/hdr-output.html


      By @Jeff Arola

      Yes, I just tested and it works IF the save is configured as outlined in your URL for a supported file format. 

      The TIFF was indeed 32-bit from the above save. 

      Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"
      davescm
      Community Expert
      davescmCommunity Expert
      Community Expert
      December 14, 2020

      There is a workaround if you have Lightroom.

       

      a. With 32 bit image open in Photoshop - Save as a flattened TIFF file (with 32 bit floating point)

      b. Import that 32 bit TIFF to Lightrooom

      c. In Lightroom use menu  Library >Convert Photo to DNG

      d. Still in Lightroom use Photo > Edit in > Open as smart object in Photoshop.

      e. This opens a 16 bit Photoshop file with a Smart Object.   Double click on the SO and it will open in Camera Raw using the full 32 bit image

       

      Dave

      Jeff Arola
      Community Expert
      Jeff ArolaCommunity Expert
      Community Expert
      December 14, 2020

      Unfortunately Camera Raw no longer supports 32 Bits/Channel as described here:

       

      https://feedback.photoshop.com/conversations/camera-raw-and-dng/camera-raw-merge-to-hdr-pro-in-32-bit-fails/5f5f45b84b561a3d425bbf5f

      Terms & ConditionsAccessibility statement
      Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices