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: 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: 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: I bought this lens for my Canon 40D. I like its versatility- the zoom range of 18-125mm makes it suitable for most photographic opportunities. The lens is solidly built, and performs well. The autofocus is quick and accurate on my camera, and the image stabilization is helpful in low light. I'm happy with the image quality as well - pictures seem nice and sharp with plenty of snap.
J. Murdock "Web editor, wedding photographer", Amazon
9 September 2009
Summary: Not willing to spend $600 for the Canon 18-200 IS, but distrustful of the Sigma/Tamron 18-200s that have a max aperture of 6.3 at the tele end, I found that what I really wanted was something like the ol' 28-200 I used to carry on my film cameras. That's when I picked up the non-OS version of this lens, and loved it. But I couldn't help thinking that the OS would be better for me, so I moved up to this one. This is the perfect wedding reception/walkaround lens for me.
Summary: There were several mixed reviews on this product but I went ahead and purchased it anyway. I was replasing a Canon 18-55 IS "kit" lense that I dropped. (which is a great lense. Don't be confused by the reviews of the older model 18-55 that's not an IS. The IS version is a fantastic starter lens.) I got my lens from 47th St. and received it today. I've taken 74 pictures so far and just now viewed them on my computer. Awesome! I love the color and crispness of them.