Olympus 17/1.8 review

Anders W wrote:

No confusion, at least not on my part. You can't measure resolution without specifying a contrast criterion (e.g., 50 percent as the test sites usually do). And you can't measure contrast without specifying a resolution criterion (which is what the manufacturers regularly do, e.g., 20 and 60 in Oly's case). What your test images show is simply that the 20 is better in the center and the corners alike, no matter what criterion you choose.

OK. By how much? Did you try to measure this?

Yes I understood that what you said was based on subjective experiences. That's why objective measurement is important.