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Eneg09
Currently Being Moderated

LR 4.2 won't read CR2

Nov 29, 2012 5:25 AM

Tags: #problem #raw #lightroom4

LR 4.2 won't recognize CR2. LR 4.1 did. Same card, Canon 50D, Windows 7. What's the fix?

 
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  • Currently Being Moderated
    Nov 29, 2012 6:46 AM   in reply to Eneg09

    More information, please - what actually happens when you try to import?

     
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  • Andrew Rodney
    1,388 posts
    Apr 16, 2009
    Currently Being Moderated
    Nov 29, 2012 10:03 AM   in reply to Eneg09

    Try shooting and importing JUST a raw file. Any difference?

     
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  • Currently Being Moderated
    Nov 29, 2012 10:10 AM   in reply to Eneg09

    One of your Lightroom preferences is to treat JPEG and raw files as separate images.  I don't know if that has any effect here because I usually just shoot one or the other.  But make sure that option is selected.  Also, are you trying to import directly from the camera?  Have you tried copying the images to the hard drive and then importing from there?

     
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  • Currently Being Moderated
    Nov 29, 2012 11:28 AM   in reply to Eneg09

    Lightroom 4.2 works great with my Canon 40D raw files.  But, if giving up is the best for you, then so be it.

     
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  • Currently Being Moderated
    Nov 29, 2012 12:07 PM   in reply to Eneg09

    There’s nothing for Adobe to fix if they can’t repeat the problem.  Can you upload one of your files to www.dropbox.com or another similar large-file storage location, and post the public download link, here?   Are you on the latest camera firmware?

     
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  • Currently Being Moderated
    Nov 30, 2012 2:29 AM   in reply to Eneg09

    Eneg,

     

    It seems that the ACR cache is either corrupt or the whole plugin might have got some corruption.

     

    You can go ahead and delete the Lightroom x Catalog Previews.lrdata by following the location from the link below accrding to the OS. (x denotes version)

     

    http://helpx.adobe.com/lightroom/kb/preference-file-locations-lightroo m-4.html.

     

    After relaunch if it still doesnt show the images try uninstall and reinstall of Lightroom by removing it from Programs & features if on Win 7 or from Add & Remove in Windows XP.

     

    If you are on mac just take the Lightroom complete file and trash it & directly install the most recent update of Lightroom.

     

    Mandhir

     
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  • Currently Being Moderated
    Nov 30, 2012 5:37 AM   in reply to Eneg09

    Eneg,

     

    As per the Adobe documentation below the your camers is supported so you shouldnt have any more issues after this.

     

    http://www.adobe.com/in/products/photoshop/extend.html

     

    The issue could have been the corruption of the ACR.

     

    Mandhir

     
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  • Currently Being Moderated
    Nov 30, 2012 6:35 AM   in reply to Mandhir Bhatia

    What would a Photoshop plug-in called ACR have to do with Lightroom?  I don’t think the user even has Photoshop installed.  LR does use the ACR-cache location, but there is no plug-in to be corrupted as you suggest in the first sentence.

     

    How would LR preview-cache corruption make things not work in LR 4.2 but work ok in LR 4.1 using the same catalog and cache locations?  Is LR 4.2 more susceptible to cache corruption than LR 4.1?

     

    My interpretation of the user’s symptoms, from the initial description, is that during import, no raw files are shown on the import grid prior to import, only JPGs as if there are no raw files on the camera memory card being imported from even though there are, and that this happens with images from two different cameras, on two different computers, and the previews in the Import grid only come from the files, themselves, not from any preview or ACR cache, right?  It is like there is a filter on the import filetypes to exclude raws, but include JPGs.

     

    If the symptoms are actually that the images all show up on the Import panel and are imported into LR, and afterwards that the raw files show as gray squares while the JPGs are ok, then cache corruption could be an issue, except that the cache seems fine in LR 4.1, so that isn’t as likely the problem.  If both raws and JPGs are imported into LR but only JPGs are visible, then there could be some sort of file-type filter enabled, but that’s unlikely to occur for every NEW import, unless things are all being imported into the same folder in LR, but even if there is a filter like this, the filter should operate the same in LR 4.1 where raws are visible and LR 4.2 where raws are not visible, assuming the user is using the same catalog for both LR 4.1 and LR 4.2.

     
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