I just bought a used xt200 with 15-45mm kit lens to learn and practice. I went to take some pictures on a street last night with a friend. I've kept the ISO at auto3 (Min. 200 & 6400 Max) and played with shutter speed and aperture for light control. I've found that the jpgs are good enough and were produced the way I somewhat intended but the raw files are much more grainy with whole other look to them. I know this is probably a silly question and raws are supposed to be edited but how can I improve my low light photography in raw, so that the photos are well exposed without much noise. How can I improve my skill on the xt200 or is it just not going to be enough or do I need some other kind of prime or telephoto lenses?