I've watched reviews of the 40-150 pro that said it rivals the 75 for sharpness.I found a used copy from Japan at a price I could warrant and it arrived Saturday. Overall I'm very impressed. Slightly closer focus and making it 90 rather than 75 would have made it perfect. I can't fault the performance wide open:
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Apparently you can even stop it down
Now a 150 2.8 that performed as well would be on my drool list...
I'm not much of a zoom user (my formative years with photography were when zooms were very much 2nd rate and even though I know today's frequently meet primes I've got used to primes). The shots I've seen of the fast zooms from both Olympus and Panasonic look excellent, but I like that 1.8 aperture.I've watched reviews of the 40-150 pro that said it rivals the 75 for sharpness.