I am on CS5 and cannot open NEF files. Have updated my RAW plugin but will not work.It installed the the DNG converter but still can't read NEF extension. I read the conversation for Noelle on her extension update but can't find an application manager. Any suggestions on what to try next?
Which camera model are your NEF files from?
I'm guessing it's a new Nikon model (which one?) not supported by the Camera Raw version which is in CS5?
Is the DNG converter version 8.4? If not update. If you want to read NEF directly with PS you will have to update to CS6 or subscribe to CC.
This should solve problem.