20 Replies Latest reply on Dec 7, 2018 4:18 PM by Todd Shaner

    Issue with DNG files

    Halicarnassus

      I am observing a strange and rather ugly color falloff/abrupt shift around the bright objects when I open DNGs in Lightroom Classic 8.0 from DJI Mavic 2 Pro drone camera. It looks almost looks like LR fails to interpret the dynamic range and display a proper gradient. I also tried exporting it to JPEG with different exposure setting but no use.

       

      I don't have any other device that create DNG so I can't cross check whether it's DJI DNGs only. However, if I open the same file using other editors, this does not happen. Below pictures, at 100% views and untouched, illustrate exactly what I mean. Any explanation or advice?

       

      Lightroom.png

      Affinity.png

      AlienSkin.png

        • 1. Re: Issue with DNG files
          Sahil.Chawla Adobe Employee

          Hi there,

           

          As the image in Lightroom looks more saturated, could you please check if there are any presets applied to the image in Lightroom?

           

           

          Also, could you please let us know the operating system you're working on?

           

          You may try color calibrating the screen and see if it helps.

           

          Regards,
          Sahil

          • 2. Re: Issue with DNG files
            davidg36166309 Level 4

            I see that your rig can save as DNG.

             

            So, when you imported t=your RAW data, was that a DNG file?

             

            If, so, when you imported that DNG file, did you:"Copy as DNG"? or Copy? or Move? or ADD?

             

            If you selected "Copy as DNG" will this foul up your image? (Haselblads DNG vs Adobe implementation of convert to DNG in LR, DNG converter, and ACR)

            • 3. Re: Issue with DNG files
              Halicarnassus Level 1

              Thank you.. I'll check the profile LR might be applying on import. Screen calibration wouldn't help because other editors (Affinity and Exposure4) can display the picture properly. I am on Win10.

              • 4. Re: Issue with DNG files
                Halicarnassus Level 1

                I am not following most of what you're asking. I copied the DNG off the SD card onto the my drive then I used the import function in LR to get it into the catalog. The import does move the file from one location to another on the same drive. The file has been in DNG format all along, since its creation. Here's the actual file, if anyone wants to take a look or play with it: https://1drv.ms/u/s!Av-wafpn6kHsg5A1GHikZkCaOxPoGw

                • 5. Re: Issue with DNG files
                  davidg36166309 Level 4

                  When you imported in LR, what option did you select

                  Copy as DNG

                  Copy

                  Move

                  Add

                   

                  proper answer would be Add

                  • 6. Re: Issue with DNG files
                    DdeGannes Adobe Community Professional

                    Would you care to share the original file so other users can have a go, or at least do a screen capture of the right side of the develop module so we can see what adjustments have been applied. OK I just noticed you have shared the file. I will have a go.

                    Screenshot 2018-12-07 at 7.41.29 AM.png

                    • 7. Re: Issue with DNG files
                      DdeGannes Adobe Community Professional

                      Ok the file in the download is a tiff copy of the dng, is that the actual file from the camera?

                      See my quick edit. The sun and quite a bit of the area around it is completely blown and there is little or nothing to recover.

                      Screenshot 2018-12-07 at 8.20.57 AM.png

                      • 8. Re: Issue with DNG files
                        Halicarnassus Level 1

                        Thanks for the response. That is indeed the file straight from the camera, untouched except for the Lightroom Import, which has moved it and renamed it, from the SD into a folder on my drive. At this point, I am not expecting the LR Import being the issue because if I open the file with Photoshop/RAW 11, it looks exactly the way it does when imported into LR.

                         

                        I agree there's a lot of clipping and loss of information at and near the sun, but the problem I am trying to solve is the way LR displays the gradient, and not whether I can recover tonality. Affinity and Exposure4 seem to do a much much better job under the identical circumstances and I am trying understand why and if there's anything to be fixed either by me or by Adobe (or maybe even by DJI).

                        • 9. Re: Issue with DNG files
                          Halicarnassus Level 1

                          It was Move, but I don't think this has anything to do with how LR imports the images. Because if I open the file with Photoshop at its original location,, Camera Raw 11 also displays the identical issue.

                          • 10. Re: Issue with DNG files
                            Halicarnassus Level 1

                            Is there a setting we can manually adjust, of affect in any way, the highlight clipping threshold Adobe uses?

                            • 11. Re: Issue with DNG files
                              Todd Shaner Adobe Community Professional & MVP

                              No, but you can over-ride it and get similar results as with Affinity by using a Radial Filter as shown below.

                              Radial Filter.jpg

                               

                              Here's what the clipping looks like in RawDigger

                               

                              RawDigger Overexposure.jpg

                              • 12. Re: Issue with DNG files
                                Todd Shaner Adobe Community Professional & MVP

                                I stand corrected! You can change the highlight recovery behavior by changing the Process Version to 2 as shown below. It's somewhat better than 3, 4, or 5 for this image.

                                 

                                1 person found this helpful
                                • 13. Re: Issue with DNG files
                                  davidg36166309 Level 4

                                  Note that ACR v11 is what is basically in LR v 8 to accomplish the conversion from RAW to visible. Mind you ACR will output a new file, whereas LR will not.

                                   

                                  At any rate, if you are seeing the same issue in ACR, especially before it is passed on to PS (or whatever) then a problem might exist (might) with Adobe RAW conversion from your camera.????

                                   

                                  One question, to clarify. The Straight out of camera (SOC) what format is it? Ah, it is a DNG (some consider DNG a form of TIFF, some nerdy tech gobbledygook goes into that)

                                  1 person found this helpful
                                  • 14. Re: Issue with DNG files
                                    davidg36166309 Level 4

                                    Ok, so I have gotten of my rear end and downloaded your file.

                                     

                                    Now, I do not know if this is a LR vs your camera issue. But I see no profiles other than Color and Monochrome, No Adobe Standard etc, no camera specific. I do see that when I go to adjust WB that the full set of possibilities exist. Its like part of LR thinks a form of TIFF, part thinks a form of RAW, odd

                                     

                                    Can you accomplish this. Hoping you still have the absolute original still in your SD card (SD, CF, whatever), To a directory on your computer that is not included in your catalog, In other words, well away from LR, PS, ACR. Copy the file again. and upload it.

                                     

                                    I suspect something has gone on with the DNG,  Maybe I do not understand how Adobe products treat a native DNG file.

                                     

                                    Hmm, I do see in my copy, that LR does have an Adobe Standard profile for your (no, thats wrong, it does not) camera, but no Camera Specific ones. At any rate, why can I not select Adobe Standard??

                                     

                                    Above edited

                                    1 person found this helpful
                                    • 15. Re: Issue with DNG files
                                      Halicarnassus Level 1

                                      I think you're onto something with respect to the lack profile options observation. I see the same thing on my PC. When I open the DNG in question, I only have Color and Monochrome as the Profile options. If I open a DNG from my iPhone X, I see Adobe Color,  Landscape, Portrait, etc, as well as a "Camera Default".

                                       

                                      If I understand the technology correctly, DNG files are supposed to have information embedded in that tells what it is and how the image data needs to be interpreted. So, if you screw up that bit of information when creating the DNG file, then the interpreters, i.e. LR/ACR, will show you a screwed up image.

                                       

                                      However, other editors like Luminar, Affinity and Exposure4 somehow understand/interpret camera's DNG info differently than LR/ACR does, which results in a better view of the colors and gradients.

                                       

                                      So, either Adobe is at fault here, by being unable to recognize/correctly interpret what DJI Mavic 2 Pro's Hasselblad camera is providing in the DNG file, or DJI's camera is at fault by being unable to provide the proper info in the DNG file (yet 3 other editors do not display the issue, because they ignore/auto-correct the bits that Adobe doesn't?)

                                       

                                      I am happy to be convinced otherwise, but I lean towards Adobe being the party who needs to take a look at this at engineering level.

                                       

                                      dng-without-profiles.png

                                      dng-w-profiles.png

                                      • 16. Re: Issue with DNG files
                                        Todd Shaner Adobe Community Professional & MVP

                                        Halicarnassus  wrote

                                         

                                        If I understand the technology correctly, DNG files are supposed to have information embedded in that tells what it is and how the image data needs to be interpreted.

                                        Yes, and your DNG file has a camera "Embedded Profile' that ACR and LR use (visible in DNG Profile Editor).

                                        Embeded Profile.jpg

                                        Halicarnassus  wrote

                                         

                                        I am happy to be convinced otherwise, but I lean towards Adobe being the party who needs to take a look at this at engineering level.

                                        Adobe hasn't provided camera profiles for any DJI Mavic camera model to date. You can add this request at the Photoshop Family forum and/or use the DNG Profile Editor or a ColorChecker Passport to create your own "custom" camera profiles.

                                         

                                        Photoshop Family Customer Community

                                         

                                        DNG Profile Editor (September 2012)

                                        The DNG Profile Editor is a free software utility for creating or editing camera profiles.

                                        Read more (PDF, 3.93 MB)
                                        Download:  Mac, Win

                                        1 person found this helpful
                                        • 17. Re: Issue with DNG files
                                          Halicarnassus Level 1

                                          Thank you!

                                          • 18. Re: Issue with DNG files
                                            davidg36166309 Level 4

                                            Does this camera also save to a native RAW format (not DNG), perhaps a .3FR format?

                                             

                                            Exploring on the web, if I google L1D-20 I get (among others) a Hasselblad  page with samples, one RAW with that extension opens fine in LR CC Classic v8

                                             

                                            Ok, strike all of that, wrong model of camera.

                                             

                                            Same page ( Sample Images Gallery  ) has some samples, and yep, they are DNG.

                                             

                                            Ok, downloaded one of the samples, brought it up in LR, same issue with profiles.

                                            • 19. Re: Issue with DNG files
                                              Halicarnassus Level 1

                                              It's RAW or JPEG I am afraid. It's a camera Hasselblad specifically made for DJI Mavic 2 Pro drone.

                                              • 20. Re: Issue with DNG files
                                                Todd Shaner Adobe Community Professional & MVP

                                                The DNG file is a raw file with an embedded camera profile and not an RGB JPEG or TIFF in a DNG wrapper! It should also show as an 'Embedded' profile in the 'Profile' dropdown menu, but it doesn't for some reason with this DNG file most likely due to the issue discussed a the below post. However, the embedded camera profile is being used.

                                                 

                                                Lightroom/Camera Raw: Leica DNG Embedded Camera Profile Issue | Photoshop Family Customer Community

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