#1. "RE: d5200 and cs5 raw" | In response to Reply # 0MEMcD Nikonian since 24th Dec 2007Tue 26-Mar-13 02:07 AM
The D5200 requires Camera Raw 7.3 plug-in and CS5 only supports up to Camera Raw 6.7.
You can open the NEF files using Nikon View NX2 (Free) and save the image as a TIFF. Then adjust the TIFF in CS5.
#2. "RE: d5200 and cs5 raw" | In response to Reply # 0Sasquatch519 Registered since 26th Mar 2013Tue 26-Mar-13 02:06 PM
I ran into a similar problem with a D5100 and an ancient copy of Photoshop CS3. I actually found the best solution for me was to buy Lightroom 4 for handling the RAW files. It was $120, so it's cheaper than the Photoshop upgrade.