There’s only going to be so much you can do with balancing light. Exposure compensation or manual settings can help, but there are limits. Bright sunlight coming in a window into a dark room covers too wide a spectrum for the camera. RE photographers use a technique called HDR or use external lighting, or both. Both topics are outside the scope of this conversation, but there is plenty of information already out there if you’re interested. Even a single flash, put on your camera and shot straight up into the ceiling can help a lot. What you’re trying to do is bring the light level of the room up to the light level outside. Even for night shots or those without windows a flash can help lighten up those dark corners. When I do RE photography I routinely use 4 flashes, and mix in some HDR, but it’s not necessary to go to that extreme.
There’s a wide spectrum of quality in RE photography, from point and shoot realtors using iPhones, to high end architectural photography, and everything in between. If all you’re looking for is a basic photo to get people in the door, then there’s no need for extremes. But this could be a great opportunity to learn something about photography and positively affect your business if you’re up for it.
