Disclaimer: I'm not a real photographer and I don't have any real experience with SLRs, digital or otherwise; I may be completely clueless here.<p>The concept of a digital SLR has always seemed a bit silly to me. The purpose of an SLR, as I understand it is to show in the viewfinder the same image that will hit the film. The live preview in an electronic viewfinder or LCD screen serves the same purpose, but in theory at least can get closer to the image that will actually be captured. The digital SLR has always seemed like a stepping stone to me; something that would let a film photographer move to digital without having to relearn everything all at once.<p>What am I missing? I'm sure serious photographers aren't just slow to learn. What's the technological advantage of SLR over EVIL?