Hi all, I have a Pentax Optio digital camera and I want to by my first DSLR. So far I have been happy with Pentax as a brand but I am not sure how good are their DSLRs. Many people recommend and use Canon or Nikon, but I also want to be different than the rest. I am not a serious photographer I just want to get a better image quaility pictures. I read somewhere that Pentax supports old film camera lenses on their DSLR cameras. How good the image quality would be if I put old lenses on a DSLR? Would it void the warranty of the camera? I would really appreciate it if you can give me some advice on which way to go. Thanks.