Lightroom: Improper Rendering of 32-bit TIFF file

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  • Updated 4 years ago
  • (Edited)
I Selected five files. I used "Edit In" "Merge to HDR Pro in PhotoShop".

Changed output to 32 bit and checked off the option to adjust in ACR.

Made my adjustments so all looked good and saved.

File back in Lightroom looked awful.

Same files but unchecked tone in ACR, no adjustments and saved to Lightroom as 32-bit file. Finished there without problems.

Can Lightroom not read a 32-bit file adjusted in ACR?
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William Smith

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Posted 4 years ago

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adriana ohlmeyer, Employee

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Hi William, Can you let me know what your settings are when you save the file from ACR, please?
A screen shot of the save dialog would be helpful as well. Thanks! Adriana
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William Smith

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There really isn't a "Save" function in ACR, as you can see from the enclosed screen snap. As outlined earlier, I merge to HDR Pro from Lightroom and tone the 32-bit image in ACR, press OK. The resulting image looks OK in ACR and PhotoShop, but when saved as a TIFF back into Lightroom, it looks completely different (and not in a good way).

In PhotoShop, I simply press "Save" so there is no dialog, it just saves and the image shows up in Lightroom, looking terrible.



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William Smith

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Any further guidance on this issue?
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Son Nguyen

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why aren't you doing the tone mapping in LR instead of ACR. LR has the same tool sets as ACR.
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William Smith

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I could, but I was following some instructions given to me for toning in ACR. I had thought that since the toning engine in both was the same, that an image toned in ACR and saved as 32-bit would render correctly in Lightroom.I am now wonder if the XMP information written to the file in ACR is simply not accessible to Lightroom unless a specific command is given to write that information out to a file that Lightroom can read.