I assume some of us are gadget and photography geeks (other than just me ). I'm wondering what kind of macro lens (what focal length) you guys use for taking close-up pics of your torts. I can get a 30 mm one cheap (<$200)from a store nearby, but I'm afraid that I'll need to get so close, my Greeks will just be pulled in their shells. The 50 mm lens for my camera is mid priced (<$500), and the 100 mm lens is $200 more than that, and both of these would have to come mail order. Any suggestions?