I got a question from John, a professional photographer wedding and portraiture photographer that asked:
I upgraded my camera from a D-90 to a D7100 and I still get this reddish brown color cast in a lot of interiors. I have tried adjusting color balance to the flash mode or sunlight mode instead of A (auto mode) with llittle success.... I have tried raising the color temperature manually and that sometimes helped in certain rooms, but not too often. It seems the auto mode works the best then I adjust the color balance in photoshop as needed but this a lot of extra time... Do you know of anything I can do to get more accurate exposures on interiors?
After looking at a couple of John's example interior photos and asking more questions it was clear that he was struggling with the three classic problems that are unique to real estate and interior photography. He was aware of the color balance problem but he wasn't even aware of #2 and #3 below. Here are the three classic issues that interior photographers have to deal with that aren't as pronounced in other types of photography:
So if you are getting started real real estate photography pay careful attention to these areas. I don't believe there is anything wrong with John's D7100 that shooting RAW and adjusting color balance won't fix. I'm sure there are others out there that will have other opinions.