The D5200 was first supported in Camera Raw 7.3 (current version is 8.1)
which was first supported in Bridge CS6
Camera Raw 7.x is not compatible with CS5 or lower versions. Only CS6+
- Join the Adobe Cloud and get the latest versions of the software
- Upgrade to CS6 (perpetual license) which is still on sale but is now abandonware since the all-new Cloud-only CC versions of Adobe software will be released on June 17. CS6 will remain on sale but won't be patched or updated other than the occasional bugfix.
- Convert the D5200 Raw files to DNGs using the free DNG converter then open and edit the DNGs in CS5
4. Use Lightroom (4.3 onwards) and export to Photoshop CS5 for post-processing.
(clue: option 3 is free, option 4 is relatively cheap)
OFF TOPIC: I wonder what kind of announcement or FAQ can possibly prevent this question from being repeated over and over and over…