I'm trying out this new concept: the roving lens test. Instead of using my tripod in a tightly controlled environment like a good boy, I take a few similar lenses out on a walk and shoot various scenes much as I would normally. I use all 3 lenses each time to see how they compare in a real-life scenario. (All the while I'm getting my exercise and running some errands - how's that for multitasking?) Up for bat are a Vivitar Close Focus 28mm, Minolta MD W Rokkor-X 28mm and the Sigma 30mm EX DN. All 1:2.8. The differences for landscape use are largely subtle (mouse over to see which is which). Particularly in the center, the 3 are surprisingly close.