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Inspiring
February 4, 2016

P: "The file appears to be damaged" - Merge To Panorama with large Canon 5Ds files.

  • February 4, 2016
  • 50 replies
  • 1023 views

I am attempting to create high resolution HDR Tilt-Shift Panoramas with Lightroom's Merge To HDR and Merge To Panorama functions. I have taken multiple images with a tilt-shift lens on a Canon 5Ds. Each finished photograph would be composed from 15 or 21 separate images. I take 5 or 7 photographs, 1 stop apart, from the center position then 5 or 7 from the shift right position and the same from the shift left position. Each set of 5 or 7 is merged to hdr to create one dng file. This process works fine. The resulting 3 hdr images are then merged to panorama which completes successfully. When I switch to the develop module or open the panorama file in camera raw I get a message stating "The file appears to be damaged". I have reproduced this error on different computers. My Lightroom version is the 2015.4 Release and Camera Raw is v9.4. Both computers are running Windows 10. It seems to me that Lightroom is struggling with the large file sizes coming from the 5Ds. Has anyone else experience this issue.

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    Danie Bester
    Danie Bester
    Participating Frequently
    June 10, 2016
    Downloading LR 2015.6. Unfortunately; the error message still persist when building HDR's and Panoramas. Maybe it will be fixed with the next update, I hope.
    ssprengel
    ssprengel
    Inspiring
    June 9, 2016

    Have you turned off Auto Align during the HDR step? 

    When stitching with ACR, I was getting an error when I had Auto Align still on, where the two HDR DNGs were 3 pixels different in size from each other and more than 10 pixels smaller than the original photos.  The error was that the image was too large to stitch.

    The Ghost option is not just off and on, it is a range, and I used the strongest to get rid of the most movement.

    A
    andyjmadl
    Participating Frequently
    June 9, 2016
    No, there is a way! Try to export the HDR/Panorama file as a DNG file, reimport the new DNG, error should be gone (worked that way before the last update)! You just lose time in your workflow doing this with every single image.
    Or stitch the files in the CameraRAW dialogue in PS.
    A
    andyjmadl
    Participating Frequently
    June 9, 2016
    Thanks Steve for your feedback!
    I merge HDR as a first step before I do any editing on the pictures. My HDR options are reduce ghost effects ON (or whatever the proper name is, my LR is in german), auto allign ON and auto tone ON. So maybe thats the reason why it doesn't work properly? And to save time I like using the shortcuts (Shift + Ctrl + H / M).
    The other files in the dropbox folder are the merged HDR and Pano files with the error just to show you I'm not making this up.
    Thanks for quick respond!
    F
    FeedbackCommunityMemberAuthor
    Inspiring
    June 9, 2016
    So if I have deleeted the original RAWs and only have the HDR dngs, I can't stich my panorama now without erors?
    F
    FeedbackCommunityMemberAuthor
    Inspiring
    June 9, 2016
    "but you need to have the HDR output the same size for each pano source DNG, so Auto Align must be off.  "

    Why is that, I used it before and there was no problems!? But now I cant stich my photos...
    ssprengel
    ssprengel
    Inspiring
    June 9, 2016

    LR 5015.6 worked flawlessly.  I cleared my CR cache using LR / Prefs / File Handling, and otherwise the same settings described for ACR, just above.  I started with just the CR2s, ignoring what other files were on dropbox:

    ssprengel
    ssprengel
    Inspiring
    June 9, 2016

    I am able to stitch the HDR-Pano using ACR 9.6 on Windows 7 just fine.  I need to get to my better computer with more memory to test in LR.

    What are your HDR options?  You cannot have Auto Align enabled because that changes the width and height of the result image to something slightly smaller and slightly different for each HDR DNG, but you need to have the HDR output the same size for each pano source DNG, so Auto Align must be off. 

    The only HDR options I have turned on are Ghost:  High and Show Overlay, mainly because of the people and moving cars in the first set.  Both Auto Align and Auto Tone need to be off.

    I was able to get both panos to look reasonably correct by using Perspective and Boundary Warp 100%, although I did use Upright - Full to make things completely squared up.

    If I get any different (non-working) results in LR I'll report back.  The only non-Adobe-default setting I used for the HDR source CR2s was Chromatic Aberration=On.

    A
    andyjmadl
    Participating Frequently
    June 8, 2016
    I just saw the panoramas with the error were only made with 2 DNG's out of 6 RAW's but still the error appears. Here they are:
    https://www.dropbox.com/sh/mig8u95ikm8wbzu/AADbxloEFpUS6t0QIjtIufoCa?dl=0
    ssprengel
    ssprengel
    Inspiring
    June 8, 2016
    Can you put the 9 raws out somewhere on www.dropbox.com and post a public share link, here?
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