My dad and I have had this same persistent issue with Lightroom for a few years now and would really love some additional suggestions. He's the photo enthusiast, I'm the computer guy, and neither of us can figure out what's going on. We have tried multiple card readers, multiple SD cards, using the camera as the card reader, multiple computers, multiple (demo) versions of Lightroom, and cannot seem to isolate any one bad factor. The memory and hard drive of the computer have been thoroughly tested, and I cannot get any other photo application to display similar behaviour. The only consistent factors seem to be the camera and Lightroom.
Photos are imported using Lightroom from the SD card or hard drive, then, as the histogram is generated, something in the post-import processing causes the colour channels to skew and the photos to display improperly. This happens using the "copy" import option with NEFs. JPEGs import fine, as do NEFs using the "copy as DNG" import option (most of the time), which is our workaround, but not a solution. Hoping for any suggestions any Adobe staff or enthusiasts might provide, as we're totally at a loss (and have been for four years)!
As of February 2017...
- Lightroom 4 was purchased in late 2012 and the problem has been occurring throughout.
- We are using Lightroom 4.4.1 on a late 2009 2.5 GHz Core 2 Duo Mac mini running OS X 10.11.6 (El Capitan) with 8 GB of RAM (most this system can handle).
- The camera is a Nikon D7100 with its firmware updated to the latest version (1.03).
- According to this, the Nikon D7100 NEF (Nikon Electronic Format) files are read by Camera Raw 7.4, the version bundled with Lightroom 4.4: Cameras supported by Camera Raw
- A trial version of Lightroom 5 or CC did not solve the problem, so an updated Camera Raw version does not seem to be the solution.
- The Adobe DNG (Digital Negative) Converter has been updated to the latest version (22.214.171.1242)
- Photos are typically imported using a USB card reader using Lightroom's import feature and the copy/copy as DNG options.
- JPEGs have never caused any issue, and neither have NEFs converted to DNGs via Lightroom (though the CC demo seemed to show the issue as the NEF import and convert to DNG steps are done in two stages; some "repair" after, while some remain "corrupted")
- Photos imported to Lightroom as NEFs without being converted would import fine, then show a rainbow-like skewing of the colour channels when the histogram was generated and displayed in the top-right corner of the Library module.
- Our workaround involved never importing the photos to Lightroom in Nikon's raw format (NEF) and keeping everything in DNG or JPEG format.
- The toggle to embed the original raw file in both Lightroom and the DNG Converter has been tried both on and off with no difference.
- I can recreate the problem on a similar second Mac mini with a trial version of Lightroom, as well as on an older MacBook, while my MacBook Pro has not had the issue, nor has a friend of my father's computer...so far.
These are the JPEG and NEF versions of the same photo post-import. Notice the histogram:
This thread illustrates some of the steps that have been tried in more detail, though I almost want to get your opinions first without going too far down the troubleshooting rabbit hole! www.lightroomforums.net/threads/raw-files-imported-into-lightroom-coming-out-distorted-and -super-saturated-help.…
Greg (and Bob) Stuart