LIghtroom: Merge to Panorama fails on files that work for photoshop just fine

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  • Updated 12 months ago
  • (Edited)
When using merge to panorama in newest LR CC I get the "unable to merge...." error. Tried with over 200 different images to no success. Same files work fine in newest photoshop pano create.
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mac dunlap

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Posted 12 months ago

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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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How many images are in the pano you're trying to merge? The pano isn't made up of 200 different images, is it?
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Johan Elzenga, Champion

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Lightroom is very picky, much more than Photoshop. If the images do not have the exact same dimensions, the merge will fail. If the focal length setting of your zoomlens changed every so slightly, the merge will fail. Photoshop will often still stitch them in such case.
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mac dunlap

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I thought of that and tried images that worked previously and there was no joy in mudville then either
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James Hess

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I haven't found Lightroom to be particularly picky in merging panorama images. Of course, I haven't done any real big ones. The largest I have done has been 21 images, three rows, seven columns.
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Johan Elzenga, Champion

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My point was that it is picky about having the exact same dimensions and the exact same focal length. Try to stitch only 5 images, where four were taken at 34mm and one at 35mm focal length because you touched the zoom ring by mistake.
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mac dunlap

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Tried with only 3 and all exact same specs. No joy there either
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Johan Elzenga, Champion

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Another thing where Lightroom seems more picky than perhaps Photoshop is enough overlap. Is it possible that these images had only 10% overlap or so?
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Johan Elzenga, Champion

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Maybe you can post them somewhere (decent size jpegs would be enough)?
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mac dunlap

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Usually 35%
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Could you post a set of images that aren't merging correctly? I can take a look and pass them onto the merge engineer.
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Johan Elzenga, Champion

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I don't know if and when they changed the code, but in my experience Lightroom has always been very picky about the image sizes.
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Johan Elzenga, Champion

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I cropped the images to the exact same size, and here's the result of the merge in Lightroom.
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mac dunlap

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Yea snd that did better than photoshop. If you have any pull with the engineers tell em to either fix its pickyness or at least document its eccentricities
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Johan Elzenga, Champion

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Well, you know those eccentricities now!... ;-)
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mac dunlap

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Yes but how many others do not and suddenly cant get it to work
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Rikk Flohr, Official Rep

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Mac, 

I noticed the files in your Dropbox link are Tiffs from an HDR Merge.  What software is performing the HDR merge? 
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mac dunlap

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aurora which was fine as a source till LR did last update
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Rikk Flohr, Official Rep

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If you perform your Merge to HDR using Lightroom instead, does it work as expected? 
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mac dunlap

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Will try tonight and let you know