Sigma 17-35mm f/2.8-4 EX DG Aspherical HSM review by lucasbutchart
6 March 2013
Summary: Wanted to share some love on this lens. It's similar to other newer plastic Sigma zooms: well made, inexpensive, fast focusing, 77mm filters, very versatile zoom range on full frame, full time manual focusing, focus scale, big zoom and focus rings, flare resistant, decently sharp wide open, nice f2.8 aperture for low light, silent HSM, very good minimum focus distance, and probably more.
Sigma 17-35mm f/2.8-4 EX DG Aspherical HSM review by JimCee
19 February 2013
Summary: I purchased this lens in September 2007 in a Nikon lens mount version from Amazon. I've used the lens extensively with APS-C cameras (Nikon D90 and D7000) and it performs admirably! DxOMark recently tested the lens and compared it with a much more expensive Canon EF 16-35mm f/2.8 II USM lens (which costs $1,549.00 at Amazon). The Sigma lens performed very well in the comparison and held its own.
Summary: I shoot different camera systems, Canon and Nikon. I have the old Canon 20-35mm L, a Nikon 20mm f3.5 prime and other decent lenses, and this Sigma performs just as good or better. HSM, FTM, and f2.8 are all amazing features that make older lenses show their age. The amazingly close macro abilities of this lens also bring in another realm of possibilities, where my L can't.
Summary: This lens is a great replacement for most typical 18-35mm kit lenses. Provides a wider angle of view at 17mm which provides more dramatic looking photos. The lens also offers a aperture of 2.8 compared to 3.5 which makes this lens able to shoot in darker settings without having to sacrifice shutter speed or noise from ISO.
Summary: I purchased this lens before for the Pentax K20d and thought it took decent pictures. Just recently upgraded to the Canon EOS 7d and decided to buy this lens for my second body. This was probably the best decision I have made. Not only does the lens focus better but the photos are phenomenal. I've read the other views and don't agree with any of the negative issues people have commented on regarding this being too soft wide open.
Pros: I like this lens, contrasty, color and focus spot on and sharp, sharp,sharp at all apertures. In fact, sharper and better tham my 17-40L GASP...
Cons: Size, a little chunky and limited range, but supurb quality photos, not sure why this is not ranked higher unless I lucked out and got an exceptional copy... Best $240 I ever spent... Make sure you look at the DG version as there are 2 versions of this lens.