Very sharp. Very fast focusing. Beautiful out-of-focus BG. Nice build. Great feel. Small size. With 1.6 factor, gives 135mm eq. I've always loved. Good for use with macro extension tubes.
Yes, the pics below are reduced & tweeked. So, no, they can't be used to judge the lens quality. (No one's going to be very much impressed with the 'detail' from my D2000's 2Mp sensor, anyway.) But, they give an idea of the narrow depth of field, and macro ability.
The fly shot is about 2/3 frame. Used with 68mm extension tube, at f16.
Cat pic is w/indoor lighting, at f1.8
Two-chicks pic was f2.5. Perhaps should have had f4 depth-of-field.
Brown chick is full frame, f2.2, to show bokah (sp?) on hillside just behind.
For the people who aren't self-obsessed with L lenses...
What was the first good non-L lens that you bought?
I'd say the Canon 100mm (non USM) macro for me. The Canon 28-135mm
IS would be my second. I still have and use both.
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xsy