Sketch presets: Also try and hunt down ironbear's presets. Daz has some presets for various formats available for sale. Lenses: Utilizing the lens paramters themselves will get you a fair variety of differet types, but don't discount the material room's usefulness: you can smart prop an actual lens literally modelled exactly the way you want to any camera and set the appropriate properties for it in the material room through raytracing functions (refraction and reflection).

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)