Originally posted by nicolaidenmark
Is there a site where onwe can compare e.g. Canon and Pentax lenses based on performance, price, features and value? Sort of like an easy overview table?
Not that I know of. But what, really, is a lens' performance? I suppose edge to edge sharpness could be a measurable factor, but at what f-stop? And how would you weigh max speed? Micro contrast? Not to mention immeasurables such as bokeh and colour rendering?
I used to look only at sharpness (which can be of importance, certainly), but some of my favourite lenses now are not my sharpest, and some of my sharpest don't see much use...
Of course, the same lens can behave differently on different bodies, so you have to factor that in as well. I suppose that's what DxO aims to measure, but I don't find their results very interesting.
In short, I don't think there is any substitute to, preferably, trying the different systems yourself, or to study images taken with different lens+camera combinations.
And remember: It's not the arrow, it's the Indian!