Anyone have good ideas about what to test for and how to test macro lenses? I have or can borrow a bunch of them, and it would be interesting to see the differing characteristics in a side-by-side test. This will probably be a long-term project since I only have an hour or two here and there to devote to this project. The test candidates: Nikkor: 60/2.8AF, 55/2.8AIS, 55/3.5AI, 85PC, 200/4AF, 200/4MF Tokina: 90/2.5MF (3 copies) + extender (2 copies) Vivitar: 90/2.5MF (Series 1, no extender, same optics as Tokina) Elicar: 90/2.5MF Lester Dine: 105/2.8MF If anyone is close to San Francisco and wants to add to the list, I'm sure one or two more lenses won't hurt. My impressions so far after shooting macro with the D70s is that every one of these lenses should out-resolve a 6MP sensor. I haven't found any pixel blur that I couldn't attribute to user error. It's mostly about things other than sharpness, though the D2X might be able to pick off the worst in sharpness.