Once I fully settle in with gear I plan on acquiring the 35-100/2.8 and a prime or two. Faster is better of course, and manual lensres are OK. In the 15-25mm range I would prefer the slightly wider choices; I owned the oly 17/2.8 before and liked the view so the 1.8 version sounds very nice. And of course the 20/1.7 is well liked & has been for years. Can anyone address how these two compare, esp. for outdoor work? There must be a thread on this somewhere so pass me a link rather than rehash.. I didn't find one after thrashing around a while. Thanks!