Originally posted by Hannican Right now my best option is either the Sigma 17-70mm (which I think is maybe too large?), the DA 18-50 (which I think doesn't have good enough IQ), or the A 50mm (which I think isn't wide enough)...
I think you might want to challenge your assumption about the quality of the 18-55 (note: it's 18-55, not 18-50). Stopped down to f/8 or so - which is where you'd be using it most of the time for landscape - I'll bet you couldn't tell the difference.
Quote: Should I try to grab a DA 14mm, or is that even bigger than the Sigma 17-70? Should I try perhaps the DA 21, which is small, and pretty wide, and pretty sharp too?
I'd find the 14 way to big and way to wide to use as my main lens for this. 21 makes sense, although I personally find even that wider than I usually want - 28 is more perfect for me. So an old manual focus 28 would be the easy/cheap/light way to go. but others would say that's too narrow. And advantage of getting the 18-55, of course, is that you could learn what your faovirte focal lengths turn out to be, then invest in something better if you end up being unsatisfied with the IQ (which, again, I'm not convinced you would be).