I'm thinking of buying a Nikon D3300. When I got into photography back in the 1980s I bought an Olympus OM-1n with a 1.4 lens, never used a flash. It took great photos and I never should have given it away, but such is life, I drifted away from photography but want to get back. My iPhone seems like an old 110 camera to me. How do the new digital SLR cameras compare to the old film SLR cameras in picture quality? Will this D3300 communicate with my Linux PC?