Lightroom: How do I prevent the import of duplicates from dual card camera?

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My camera (Nikon D7200) has dual SD cards. I have it set so that card 2 is a backup of card 1; ie when I take a shot, a raw file is saved on both cards.When I import into Lightroom 6 from the camera it sees both cards as one source and, unless I manually uncheck each alternate file, Lightroom will import two copes of each file. I have do not import duplicates checked but this seems to only apply to images already on my hard drive.The file name of each image is the same on both cards. When importing, both appear in the source window, neither greyed-out, and each image has the same file name. Upon importing both copies are copied to my hard drive, one with the original file name and the second with a "-2" added.Is it possible to get Lightroom to either allow me to import from only one of the two cards or not import the duplicate in some other way?
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paul kloeden

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Posted 3 years ago

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Victoria Bampton - Lightroom Queen, Champion

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Have you tried a card reader?
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paul kloeden

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Using a card reader is obviously a solution. With only one card in the reader, only one card is visible to Lightroom. I am still interested, however, in why Lightroom doesn't recognise the two cards in my camera as separate sources and/or why it will import duplicate files which have exactly the same file names.
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Victoria Bampton - Lightroom Queen, Champion

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I'm with you - and yes, I'd love to know that too.
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Jim Wilde, Champion

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Victoria, I discussed this issue with Paul over at LRF, and suggested he put in a bug report. When I tried to replicate the issue I had very mixed results:

On my MBP Lightroom did identify the second card files as being duplicates and greyed them out....exactly as I would have expected, apart from the fact that some of the previews of the first card were showing upside down in the import window (they were shown correctly when I imported from a card reader).

On my Windows desktop, Lightroom refused to show me ANY of the images from either card, reporting "No Photo Found" after spending a little while accessing the camera. Haven't tried to sort that issue, been a tad busy on other things!
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William Hocking

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I am having the exact same problem described by Paul. The only difference is that LR doesn't show every image as a duplicate, just some of them, and this seems to be somewhat random. If I use a card reader, there are no duplicates. If I remove one card from the camera, there are no duplicates. This occurs on both my Macbook Pro and iMac.
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Jim Wilde, Champion

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I finally did manage to replicate Paul's original issue, but only on the Windows platform. On my MBP the duplicates checking worked correctly every time.

I think the problem that we'll run into here is getting any sort of priority for a bug fix, as there was a very candid response from one of the Lightroom team in another thread about a bug which only ever occurs when importing directly from an attached camera. Basically, where there's a simple workaround (i.e. using a card reader instead), any such bugs are likely to be given a very low priority, and I'd suspect this issue will fall into the same category.

Suggest you carry on using the card reader.
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Mike Mirsky

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I experienced the same problem - D7200 with Lightroom 2015.8 with the D7200 set up so that the card in slot 2 is a backup to slot 1.  I looked at the duplicates carefully and noticed that the time stamp on the slot 1 image is different than that on the slot 2 image (the slot 2 image is time stamped 1 second later).  I spoke to Adobe and the support agent simply said that's the way the application is designed.  That may be so, but it is totally annoying and I personally believe that it is a design flaw.
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Robert Frost

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If you don't want to use a card reader, why not simply take the second card out of the camera before importing?

Bob Frost

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William Hocking

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That works as well. It's just that after 3 or 4 years, it would be nice if Adobe could solve this so that one didn't need to go through these work a rounds.

Bill Hocking
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Robert Frost

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Using a card reader is not a work-around; I thought it's what most people do to avoid flattening the battery in your camera.

I think there are far more important things for Adobe to do than this very minor problem for you. ;)


Bob Frost

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William Hocking

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Thanks for your opinion.

Bill Hocking