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DNG export results in very small resolution file

Darius Mihai

Hello fellow C1 users,

I have also reported this as a bug https://support.captureone.com/hc/en-us/requests/241547
However, I am wondering if anyone else encountered this issue and if there are any workarounds.

 

The issue:

Starting with a Sony ARW file having width x height = 7055 x 4672 px, the resulted exported DNG file is 160 x 107 px
The Summary section of the Export page in CaptureOne shows the correct size but the exported image is incorrect.

Steps to reproduce:

  1. Import a Sony ARW raw file into CaptureOne (7055px x 4672px)
  2. Go to the export page, choose any recipe that doesn't resize the files.
  3. Select Format = DNG; Crop = Ignore Crop; Sharpening = No Output Sharpening; Metadata: check Copyright and Camera Metadata
  4. Click on the maximize button because the export window is also broken on 4k displays and goes out of the screen. Clicking maximize makes it exactly the screen size so it can be used. Without this, the "Export 1 image" button is not visible.
  5. Click the "Export Image" button
  6. Check the resulting file.

Environment:

  • Monitor: Asus ProArt PA279, 27 inch, 4k
  • Camera: Sony A7 IV
  • GPU: Nvidia GeForce RTX 3080 Laptop GPU
  • CPU: Intel Core i9 11900H
  • Others: 32Gb Ram



Ignore the name of the export recipe, I modified my tiff export to see if dng export would work.

I need DNG in this case and not tiff due to the following reasons:
- I want to stack these using SiriL, and stacking tiff does not allow me to use my master dark file.
- The result is much worse with stacking tiffs than with stacking the raw files
- I can stack the raw files directly and bypass CaptureOne, but the lens profile would not be applied that way

So what I'm trying to do is:
- Import ARW files from Sony in CaptureOne
- Apply lens profile corrections
- Export DNG files from CaptureOne
- Stack DNG files in SiriL
- Merge the stacked result with the foreground photo (which is why I need the same lens profile applied to the stack)

Screenshot showing that the Summary section in CaptureOne's export page displays the correct resolution:



  • Screenshot showing that the exported file is only 160 x 107 pixels.
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