Summary: OK, perhaps it isn't perfect, but it is darn good, and amazing for the price. I'm a small guy who lugs around a 60D on long trips. Things get very heavy very quickly. If I had my druthers, I would carry this, my 50 mm Canon f1.4, and my Canon wide angle. However, by the end of the day, the shoulder on this 64 year old would implode. I've walked around with the Kit Lens and with a Tamron 17 to 50 mm, 2.8, which is an excellent lens.
Summary: This was just what I was hoping for. I had read pros and cons from others, but I read a review from a canon user mag that rated it a best buy for mid range zooms. I am very pleased with the performance so far. The motor for the auto focus sometimes is busy, but it is not a deal breaker. The lens gives a good end product, and the price is right. I would recommend it to a friend.
Sigma 18-125mm f/3.8-5.6 AF DC OS HSM Zoom Lens/Canon Mount
J. French, Amazon
1 January 2012
Summary: This lens is sweet, it gives the ability to have a "walk-around" lens that does what I need for the shots I take, which are mostly street scenes and architecture. I am glad I bought it and can recommend it to any amateur photographer looking to add to their kit.
Summary: I was willing to pay a few hundred more for a lens that was just what I wanted. But this one had the right specs and so I jumped. Its been great so far after about 1500 pictures. The image stabilization is really quite good and the pics sharp, especially in the middle of the aperture and zoom ranges. There can be a bit of fringing occasionally, but not too bad and easily corrected in photo processing apps that do that.
Summary: So I got one of these for my birthday form my parents and as soon as I put the lens on and turn on the camera it starts to emit this uncharitable high pitch squeal. So my first reaction was it was the IS, but I turned that off and guess what? It was still doing it. So I called up amazon and they took care of me real well! Overnight Air mail to my house. So today Is the day I got the new one, this time the lens did not sequel!
Summary: The range fits most of my casual needs, and the HSM is fast and quiet. Images are sharp but there's not much in the way of bokeh (to be expected). I've been reading a lot of reviews that complain about the OS "noise", but my copy seems to make very minimal noise -- I can only hear the noise if I put my ear up to the lens and actually try to listen for it. True, the lens does keep its OS on even if you're not using it, but it turns off if your camera auto-powers off.
Summary: After doing alot of debating over what lens to get, (Sigma 17-70, 18-200, 18-250, Canon 18-135, 17-85, 18-200, some Tamron's) I finally decided on the Sigma 18-125mm OS HSM after reviewing a crap load of customer reviews on a myriad of websites. I got this lens to replace a Sigma 28-200mm DG lens, for the wider angle and OS HSM, and to use as a main stay on the camera (Canon T1i) over my 18-55mm IS kit lens.
Summary: I have had this lens for a week. It was purchased to replace the factory kit lens on my Canon T2i and am very impressed with the quality of both construction and optics. A great match for the T2i. Lots of fun! It is definitely a much better lens than the older 18-200mm I purchased for my Dad 5 years ago. I am not disappointed at all!
Summary: If you are like me and want a bit more reach than the standard 3x kit zooms (17-50, 18-55, etc) but don't like the price, weight, or optical compromises of a superzoom (18-250) then this is a great lens. The build is really excellent for a lens of this price. It has nice weight and feels solid and well put together and it comes with a hood. Autofocus is great.