I've been trying to make some bath time photographs of my kids, and find that the light in the bathroom is quite flat. I've used HP5, but my exposures are so long that they become movement abstracts, and I haven't come up with one that I like. I've also tried D3200, and there is some potential there, but the images so far are a bit grainy.
I'm not sure I can solve this with exposure/development alone, and maybe I should try a flash. Any strategies for how to go about shooting in a small interior room with flat light? I want to try to avoid harsh shadows on the wall/tub behind them.
Thanks in advance!