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StephenC Photography
StephenC Photography
Known Participant
December 12, 2020
Answered

LR Classic and Canon EOS R RAW (CR3) files

  • December 12, 2020
  • 1 reply
  • 2186 views

LR Classic 10.1

MacBook Pro Mid 2015

Big Sur

2.5GHZ

16GB RAM

100GB free disk space

 

I have this week taken ownership of a Canon EOS R camera. The RAW files are .CR3 files.

Previously I have been suing a Canon EO5D MKIII with Lightroom Classic with no problems. Those are CR2 files.

 

Now with the images from the ESO R, LR keep hanging, showing the rainbow wheel of death, and rebooting while trying to process the images. This is in Develop mode. I have reverted to compressed RAW (cRAW) files and still the same issues. It is unworkable.

 

I edited a few images in LR CC and all felt fine there.

I have shut down all other applications, still the same.

 

Any suggestions?

 

Many thanks

 

Stephen

 

(oh, the disappointment when you get a new toy and all is not right)

 

    This topic has been closed for replies.
    Correct answer DdeGannes

    Under Camera Raw in Preferences I see "Use Graphics Processor". This is set to Auto.

     

    Is that it? Do I turn this to "Off"?


    Yes. To be specific do it in LrC Preferences. Camera Raw is a plugin for Photoshop, the same processing engine is built into LrC.

     

    1 reply

    DdeGannes
    Community Expert
    DdeGannesCommunity Expert
    Community Expert
    December 12, 2020

    Try turning off GUP in LrC preferences. Some users of earlier mac computer.

    Regards, Denis: iMac 27” mid-2015, macOS 11.7.10 Big Sur; 2TB SSD, 24 GB Ram, GPU 2 GB; LrC 12.5,; Lr 6.5, PS 24.7,; ACR 15.5,; (also Laptop Win 11, ver 24H2, LrC 15.0.1, PS 27.0; ) Camera Oly OM-D E-M1.
    StephenC Photography
    StephenC PhotographyAuthor
    Known Participant
    December 12, 2020

    Thanks Denis

     

    What is GUP?

    StephenC Photography
    StephenC PhotographyAuthor
    Known Participant
    December 12, 2020

    Under Camera Raw in Preferences I see "Use Graphics Processor". This is set to Auto.

     

    Is that it? Do I turn this to "Off"?

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