Excerpt: This lense gives me the wide angle I needed without paying too much, and, at the same time, a pretty good zoom that makes possible a discrete approach to your target! I highly recommend it. The delivery was fast and easy, right on the day scheduled.
Pros: Fast / accurate auto-focus, Strong Construction
Excerpt: I've used several popular all-in-one lenses, and my very unscientific comparisons show this to be noticeably the sharpest. Other nice features include light weight, no lens creep when the lens is pointed down, and fast and quiet focusing.
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Rugged, Strong Construction
Summary: This is a great lens that compliments my 70-200 f2.8. The f 2.8-4 fits almost any situation. Although it is a DX lens, which I use on a D7000, I also routinely use it on my D600 with no vignette seen on the image (to the native eye, not pixel peepers). Do be aware that as soon as you zoom out of 17mm, the 2.8 goes up to 3 and then after about 30mm to 3.2 and then at about 60mm it goes to f4, but, overall, is one stop that important?
Summary: I say WAS because I updated to the latest version (Sigma 17-70 Contemporary) so I could use the new USB dock with and update firmware and fine-tune focus. This lens was on my camera 95% of the time. No need for a 35 or 50mm f1.8. This takes the place of both...and then some. If you can't afford the newer version...buy this. If it broke, I'd buy it again.
Summary: First off I'm going to say WOW! I shoot with a Nikon D5100, and a D3000 as a backup. I bought this lens looking for something to replace my Nikon 18 - 55mm kit lens, turns out it replaced most of the glass I use. I've been on probably 15 - 20 shoots with this lens now and it still has not stopped amazing me. This glass will probably be my everyday use lens for a long time.
Great value for money, very good quality allround lens.
19 April 2013
Summary: I bought this lens to use as a regular lens on my nikon D3100. I was a little hesitant as first as a few of my friends as well as some online reviews leaned towards the nikon lens. My photographer friends told me to stick to "original stuff" to get the best experience out of my camera. Let me tell you that i am an amateur photographer and needed this lens for my upcoming vacation trip.
Summary: I purchased this lens to do some indoor shots with a mounted speed flash. Focusing is fast and precise. Has a nice bokeh effect at fast apertures, although not as nice as a f1.8 prime lens, but still pretty good. I would buy this lens again!