There was a thread a while back of old armature photographs taken with Kodachrome film. The photo posted here really captivated me, and my interest in Kodachrome was piqued. I've found it for sale on the Internet, but need some gaps filled in for me. Where do I get this stuff processed? What kind of camera does it take to shoot Kodachrome? On this page, there are 4 different kinds offered. What's the difference?