Originally posted by slackercruster Will the 10-17 be a good WA choice or does it distort things even at higher focal length settings?
It distorts at all focal lengths, though not as badly at 17mm. Also keep in mind that the distortion is toward the corners around the middle of the frame even to the edges distortion is minimal. Hence, if you put the horizon in the middle of the frame, it will be straight. Anything toward the corners will distort, mildly at 17mm, intensely at 10mm.
The DA 10-17 is a bit of a wildcard lens. It's not really any sharper than the kit lens but, thanks to stunning color rendition, excellent contrast, and beauty of rendering, is capable of producing stunning photos. Fisheye lenses, because of their distortion, can be limited in their usefulness; but make a fisheye that zooms, and its usefulness goes up exponentially, since you can dial in just the right combination of distortion and FOV to create the image needed.
Originally posted by slackercruster The 15 seems very close to the standard kit zooms WA. Not gaining much for the money in shorter foal length.
As others have mentioned, 15mm is not
that close to 18mm. And you gain more with the DA 15 than just focal length over the kit lens: the DA 15 has
much better IQ.
Originally posted by slackercruster What is the best WA choice?
Depends on your needs. The "best" WAs are probably the DA 15, the DA 12-24, and the Sigma 8-16. They are also the most expensive options. The Tamron 10-24 and Sigma 10-20 (1st version) are less expensive but still quite good choices, comparable, if not quite matching, the more expensive alternatives.
The DA 10-17