Great pano mate! How does it compare to the 5DII? Just a reference point for me. Thanks for the reply.
I own both the 5D2 and 5D3. I've done some limited long exposure night stuff with the 5D3 (auroras and full moon night for day kinda stuff) with exposures up to 30 seconds. I've also done a ton of that kind of stuff with the 5D2. I shoot RAW & convert in DPP or ACR. Real world, I give the 5D3 a 1 stop advantage in noise (or maybe even slightly more - using Neat Image anyway - the 5D3 files seem to clean up nicer than the 5D2 files).