P: TIFF compression settings have no effect when Lightroom sends image to Photoshop for editing

Está acontecendo a mesma coisa com o meu ps e Lr

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Está acontecendo a mesma coisa com o meu ps e Lr

Rikk, using LR 9.3 the issue appears to be fixed on my Windows 10 system.

However, I'm still seeing an unexplained difference in the LR Export file size using ZIP compression. I mentioned it in the reply here:

https://console.getsatisfaction.com/photoshop_family/conversations/lightroom_tiff_compression_settin...




ProPhoto RGB 16 bit with ZIP compression was used for all three of the above files. The LR Export Metadata panel was set to include 'All Metadata' and no options checked to remove data. That's a 9 MB difference, which as I mentioned is not likely due to differences in LR and PS metadata. Using ExifTool the LR Edit in PS and Export file metadata is 12 KB and the PS Save As ZIP file 14 KB.

I did a compare of the files using PS Apply Image as outlined at the below link. Skip page 1 and follow the procedure as outlined in pages 2 and 3.

http://www.digitaldog.net/files/Apply_Image.pdf

I used a Levels Adjustment layer set to 126 and 129 with the 'Apply Image' file. The results are shown below with LR Edit in PS and PS Save As ZIP showing no difference in the Histogram. The second compare for LR Export with ZIP and PS Save As ZIP shows differences in the histogram. Clearly there is something different with the LR Export with ZIP function. Since the file size is significantly smaller this is most likely due to compression artifacts.

Even though the differences are small it begs the question of why. It should be fairly simple to find out why and fix it. I checked Camera Raw 12.3 Save & Convert with the same export settings and it exhibits a similar smaller file size (108,101 KB). Please let me know if you need further information.

Lol at "thank you for your patience" on a fix for an eight-year-old bug.

Can you elaborate? Do we not need to use "Save As" anymore while saving a file exported from LR? What does simply saving a file do after the fix?

Can you elaborate? Do we not need to use "Save As" anymore while saving a file exported from LR? What does simply saving a file do after the fix?

Version 9.3, an update to Lightroom Classic, went live on June 15, 2020 and contains a fix for this issue. Please install the update and respond back if it does not cure the issue for you. Thank you for your patience!