Olympus 12-40 easily beats the Canon 17-55 at f/2.8 (but not when stopped down).

Started Nov 3, 2013 | Discussions thread
brucemc66 Contributing Member • Posts: 745
I thought this was about lenses?

Anyway my 5c , testing the 12-40 vs

18-50mm sigma 2.8 4/3 12-40 much better , and I was extremely happy with this lens before much sharper

24mm sigma 1.8 4/3 stopped to 2.8 about equal in sharpness, but the 12-40 wins with lots less ca and better corners

50mm f2 macro 4/3 - 50mm by a large margin even wide open , but the field of view probably helps a little

tomorrow 11-22 4/3 and 35mm macro 4/3

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