Summary: It's a very good lens, a bit heavy and large though. The central resolution and contrast are very good, especially on a full frame, the edges are much weaker, so it might not be ideal for the landscapes. The flare resistance is good, but not great.
Summary: I bought this for my N65 35mm film camera and had a lot of fun with it. Now that I have a D90 (APS-C) I almost never use it, the DX frame essential puts this in a not very useful range for me. That said, I'm about to upgrade to a D610 and this will come back out of the closet.
Summary: This is an exceptionally good lens from Tamron. I have the Canon 17-35L and I do think it is a little better; more punchy in the way Canons are, though the Tamron really holds its own and has a special x factor that makes this a valuable tool in your camera bag.
Summary: I bought the Tamron used as a temporary measure during a cash-poor period of my life, when I needed a wide angle zoom for a photo assignment. I intended to keep it only until I could afford a Nikon lens, but after using it for awhile, didn't see any reason to switch.
Summary: The appearance and construction seems very high quality. Finish, feel and texture is excellent - far more superior than some of the Nikon branded ones at this price range. Has slight trouble focusing in low light but this problem isn't exactly unique to this lens. Very, very good picture quality.
Impressive picture quality - and at a great price too
Eric Hobart, Amazon
7 December 2010
Summary: I have recently expanded my lens package to include this beauty from Tamron, which is the only wide angle lens that I'm carrying in my kit right now. My penchant is landscape & architecture pictures, and this lens never disappoints in either of those two arenas.
Summary: On a 1.6x crop factor camera like the Canon 350D/20D, the effective area of this lens is equivalent to a 27-56mm lens on a old school film-based SLR camera. As I come from a background of extensive 50mm lens use, I find this to be my most common working range (and I have four other excellent lenses...
Superb optical quality and fast for an amazing price
J. C., Amazon
22 November 2010
Summary: This is about the same range of the Canon 17-40mm F/4L lens and offer equivalent and sometimes superior optical quality and it's F/2.8 at the wide end. The lens is super sharp and very contrasty, with fast auto-focusing and a good feel on the focusing ring.
Summary: If you have read my review for the Canon i9900 you know that I shoot for Federal Law Enforcement and the military, with them I shoot prime OEM lens not third party lens... However I cannot personally afford OEM lens so I shoot third party, this Tamron lens is by far the best third party lens I have...