will_yuan's profile

3 Messages

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150 Points

Sun, Aug 23, 2020 1:51 AM

Camera Raw: Canon R5 Raw images are underexposed

Canon R5 RAW images are underexposed by 1.5 to 2 stops when imported into Lightroom. 

Responses

Official Solution

Adobe Administrator

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10.7K Messages

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142.1K Points

9 m ago

Greetings,

 

Updates for the Adobe Photography Products were officially released on 10.20.2020 that include fixes for these issues. Please install the most recent update and confirm that your issue is now fixed. Please let us know if you encounter any issues.

If you have large numbers of affected previously-edited images you can:

  • Use the Library Filter to only show images from the Canon R5 with edits.
  • In LIbrary - Grid Select All
  • Use Quick Develop to adjust exposure to -2/3 (Small Left-facing Arrow clicked twice)
  • This should restore your edits to the expected state. 

 

Thank you for your patience.

(edited)

2.3K Messages

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26K Points

1 y ago

You can't know anything about the exposure without viewing a raw Histogram and none exists in ACR or Lightroom. 

The images appear too dark with perhaps a default rendering. You can adjust image brightness with the controls provided, but this has nothing to do with exposure (Exposure only takes place at image capture, the result of the amount of light striking the sensor so just Aperture and Shutter). 
If you want to evaluate actual exposure, you need a tool like RawDigger to view a raw Histogram. 

Articles on exposing for raw:
http://www.onezone.photos
http://schewephoto.com/ETTR/
https://luminous-landscape.com/the-optimum-digital-exposure/
http://digitaldog.net/files/ExposeForRaw.pdf
https://www.fastrawviewer.com/blog/mystic-exposure-triangle
https://www.fastrawviewer.com/blog/red_flowers_photography_to-see-the-real-picture
https://www.rawdigger.com/howtouse/exposure-for-raw-or-for-jpegs
https://www.rawdigger.com/howtouse/beware-histogram
https://www.rawdigger.com/howtouse/calibrate-exposure-meter-to-improve-dynamic-range

3 Messages

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150 Points

1 y ago

What I meant is that they are very dark when imported even though the exposure is correct in camera. I have to bump up the exposure to 1.5 to 2 stops. This didn't happen with my other Canon cameras. 

12 Messages

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296 Points

1 y ago

I am not seeing any problems with the R5 RAW images I have imported. Using LR Classic 9.4

23 Messages

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500 Points

1 y ago

This is what has been noticed. When you open RAW files from the R and the R5 of the same image using Canons DPP the exposures are fairly equal. When you open those two flies using LrC 9.4 the R5 files are about 1/2 a stop darker.            

Adobe Administrator

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10.7K Messages

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142.1K Points

1 y ago

This is a known issue and I've linked this thread to our internal bug report. It should be fixed in an upcoming release. 

7 Messages

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164 Points

1 y ago

sure hope the fix is coming soon!  images look so good in camera but are so dark and lack color when downloaded, and fixing in post cases some quality deterioration...  :( 

505 Messages

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9.5K Points

1 y ago

Lisa, Denis’s point above about careful setting in the Details (and NR/masking) settings may help too, your in camera Preview will have in camera processing applied too, which might point to your noise issues.

Adobe’s default NR and detail settings are far less than ideal for most uses, even if they are scientifically more accurate. Tackling the currently rather unfriendly method of setting up an ISO variable preset is worth the effort.

Champion

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2.4K Messages

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39.1K Points

1 y ago

As a quick sanity check please make sure that Highlight Tone Priority (HTP) and any other in-camera settings that affect exposure are set to ' Disable.' If enabled the images will look OK in Canon's DPP because it can read and apply those settings to the image, but the exposure in LR and ACR will appear incorrect. Can't hurt to check!

505 Messages

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9.5K Points

1 y ago

Lisa, would you like to send me a raw file - would be happy to examine it!
mail@ashmills.com


2 Messages

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70 Points

9 m ago

I just noticed a really annoying bug with LRC 10.0 : the brightness of my images is different when I look at them in the Library or Develop menu. In the library menu they are 1/3 f-stop darker. When I switch to the Develop menu, they are displayed with the same brightness at first, but after a few moments they become 1/3 f-stop brighter. This happens only with the CR3 files of my Canon EOS R5, with the CR2 files of my Canon EOS 5DSR, the brightness remains the same in both modules. Now, I don't know which display is correct and relevant for the output. 

Note: This comment was created from a merged conversation originally titled Different brightness level in library and develop module (LRC 10.0 /Canon CR3 files)

Adobe Administrator

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10.7K Messages

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142.1K Points

9 m ago

Note: In the official post I have included instructions to correct your previously edited photos,