Excerpt: This was a replacement for the kit lens that came with my Nikon D500 and I have been very happy with it. Pictures come out exceptionally clear. It covers a useful range of focal lengths. The large diameter allows plenty of light in.
Pros: Consistent Output, Fast / accurate auto-focus, Good in low light, Strong Construction, Versatile
Excerpt: The Tamron 17-50 f/2.8 is a great lens. The build quality is good, fast autofocus, sharp and great color. The only things I could find that I didn't like was the focus ring turns during autofocus and the autofocus motor makes noise. Its not very loud but in a quiet environment it can be noticeable.
Pros: Durable, Easily Interchangeable, Fast / accurate auto-focus, Nice Bokeh, Strong Construction
Summary: Just Get it. You will not be disappointed. Its a great all around lens, super sharp, autofocus isn't the best, but it makes up for it with the 2.8 constant aperture. Very well built, solid piece of Glass.
Summary: great upgrade from the kit, lens is a beast and looks pro as hell.. it is a little soft at 2.8 which is kind of a drag since i bought it for low light concert photography but for $250 excellent used condition I can't really complain.
Excerpt: After reading many reviews and going back and forth between this lens or Sigma 17-50, I finally pulled the trigger and order this one, I am extremely happy with this lens, great color and contrast, the key with this lens is to shoot it like a prime lens since there is no VR ( Vibration Reduction ) I...
Summary: On my new Pentax K5-IIs, this is very good do-it-all lens. Landscapes, portraits, street, interior (less so than wider angle lenses), except for birding, wildlife. I am thinking of getting one for my D7000 ti replace my workhorse but worn out 16-85mm.