dng photos

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suntchan

• December 07, 2019 12:36

Hello,

When I load dng photos in RC, I got the thumbnails instead of the full resolution photos.

Any idea why ?

 

Thank you.

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  TON14

  • December 07, 2019 13:03

  Don't use any RAW or DNG! Reality capture uses embedded JPG in DNG file.
  Use JPG or TIFF-8.
  Use JPG direct from camera. Or use a software from the camera manufacturer for RAW converting.
  Or use new 16-import for TIFF-16 and other 16-bit formats.

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  Erik Kubiňan CR

  • December 10, 2019 06:48

  Dear suntchan,

  As TON14 mentioned it is not recommended to use DNG format as it only uses it's thumbnail you can put RAW photos into RC and it will process them successfully but to save up space and have access to tweaking the raw file. I'd also suggest you to first convert and postprocess the images and then use JPGs.

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  suntchan

  • December 10, 2019 13:13

  Thank you.

  What kind of postprocesses do you recommend ?

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  Erik Kubiňan CR

  • December 10, 2019 13:18

  Well decreasing highlight values, increasing shadow values, lowering noise, tweaking white balance. Just don't do the lens distortion outside RC it is better to let RC do it.

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  TON14

  • December 10, 2019 13:33

  I tested RAW(Sony .ARW and Cannon .CR2), TIFF, JPG
  RAW have worse alignment.

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  suntchan

  • December 11, 2019 14:20

  I tested NEF (Nikon) on one model and the alignment was as good as with JPG (no highlights, boost shadows, noise reduction).

  So I wonder if it is worth the time to postprocess the images ?

  RC seems to do very well with NIKON RAW

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  Erik Kubiňan CR

  • December 11, 2019 14:31

  It will do well with RAW formats and it is completely up to you, but if you convert your RAWs into JPG and delete the RAW images afterwards you will save a lot of disk space.

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  suntchan

  • December 11, 2019 14:43

  Actually NEF files are almost the same size as JPG, so no saving.

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  Erik Kubiňan CR

  • December 11, 2019 14:52

  Alright as I said it's up to you, this is just my suggestion from an experience working with NEFs.

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  brek01

  • July 14, 2020 19:54

  I use a two fold approach, take images as raw and do a two step process, I increase contrast and sharpen slightly (without introducing more noise), if shadows are too black i lighten them and reduce any blown out areas, (modern dslr;s have fantastic ability to capture detail which can be recovered if you shoot raw). I then save those out as 95% quality jpegs for doing the solve. I then flatten the raw images to as neutral as possible using adobe raw in photoshop (aiming for as linear as possible) these 'flat' images are then use to texture the geometry got from the jpegs, the reason for that is to have a texture output file that the render package used can then apply its own tone curves to to keep as much data as possible.

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  Erik Kubiňan CR

  • July 15, 2020 07:51

  Absolutely understand and I use the same workflow almost. What I am saying is that after you flatten the RAW file you can just export it as a jpeg and that's it, you can delete the RAWs. You wont get much more using the RAWs instead.

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