My RAW (nikon .NEF) files are literally changing to a dull, darker version of themselves after selecting them for the first time after import. I.e. The correct photo (light/color/etc) seems to be there and then a second later the photo changes. It's almost like it's showing a quick enhanced version then back to basic raw image. Started within last two updates.
Is there a fix or is this the straw that forces a switch to Lightroom?
Thanks for the response. This is what I imagined at first, but this does not happen with the same images on another computer with an older version of aperture. Also - the ready to edit RAW image on the older version of raw matches the initial "jpg" version in the new aperture.
It may be that the other computer with the older version of Aperture also has an older version of Apple's 'Digital Camera RAW compatibility' package. As I recall, Apple changed something to render colors more faithfully for Nikon NEF files in one of the versions in the last 6 months to a year. Digital Camera RAW is the thing that decodes the RAW files for OS X and any Apple software that will render RAW files.
You can go to the 'Aperture menu > About Aperture' to see which version of Digital Camera RAW is being used.
Some people have reverted to an older version of the Digital Camera RAW Compatibility to maintain their workflow.