Last Christmas my boyfriend bought me a CANON EOS 30. I love photography and want to become an excellent photographer but learning is painfully slow..... I'm trying to work out my apetures and how to use filters, metering basically everything... My problem is this: when I take a picture, how do I know what it should come out like compared to what I actually see on the photograph developed by the shop I take my negatives to? I have handed my roll of film in and got prints with a certain exposure and then when I go to get reprints the exposure has changed (the sky is a different shade etc etc) I think I'm not using the right developers but who then should I go to to get the correct exposures on my photographs so that I can see if I'm getting it right or not? Can I develop my own prints? Or is that far too technical for me right now?