Excerpt: Ive got my 18-135 as a kit with a t3i last year. For a beginner upgrading from a smartphone or a p&s, this lens will yield amazing results. BUT, when you upgrade your selection to L-glass, you can be dissapointed with the quality of this lens. I always fear that my af will break because I forget to turn the af to manual. the build quality feels plasticy. Af is loud but it is actually fast. IS is silent and great. Image quality does suffer from CA and color fringing.
Summary: In my opinion, this is a great lens if you're beginning in photography. I mean, who wants to spend more when you don't even know you'll keep with photography? I sure don't, so I bought this lens. I have used this one a lot and I'll use it more. The only reason I give it 3 stars is that it's so freaking heavy. Holding this thing for 300+ shots for a photo shoot, you're going to feel it afterwards. I do wish that I skipped this one and bought the 85mm f/1.8 instead.
Conclusion: I bought this when I bought my 50D last spring. I travel and need a good travel lens. What I found is that this lens focusing capability was sluggish, especially in low light/flash and when at a greater focal distance. It struggles to focus in these conditions. There is a distortion around the edges that I don't like either. So...since I have my first big job coming up, I am going to trade up to a nicer lens ( or two).
Pros: inexpensive, lightweight
Cons: soft focusing, autofocus doesn't function well in low-light, auto-focus sluggish at telephoto end, doesn't have distance measure on body
Conclusion: I've been shooting digital as an amateur for 15 years. Stepping into the Canon world I bought a 60D with this kit lens. I thought I would like the reach plus wide angle. I got this but I am very disappointed with the quality of the pictures. Color saturation is only OK, there's no snap to the results. I have reset the camera in different ways to increase saturation, changed other settings, etc, but still disappointed. Compared to the 18-55 kit lens this one falters.
Excerpt: My results with the 18-135 are the similar as in the reviews of the Canon 18-135mm at, [@]. BTW [@] the only one I'm of aware that do their lens tests on the lens itself -- not images taken with a camera.My overall rating of JPEG images out of the camera (T2i) is 2.5 due to the lens is quite soft at the edges of the image, noticeable light fall-off at the corners with max apertures, and distortion at 18mm.You can get good (3.5 - 4.0) images providing that you: • Have...
Pros: Good AF for non-USM, Good Zoom Range, IS Good, Lightweight
Conclusion: Bought with my 60D at recommendation of authorized Canon Dealer store salesman as "great kit lens". Great perhaps as 18-135 is good theoretical range. Don't care for lens as image quality seems poor, too slow to use indoors without flash, find autofocus slow and noisy and basically feels cheaply made.
Conclusion: I've had this lens for 3 months and all images produced using this lens was not good at all. autofocus performance is not so good, produces a lot ghosting, CA, and vignietting. loose front element. zoom ring was smooth enough but focus ring was too light. contrast and color representation is so bad.
Conclusion: I have used Canon glass for over 30 years having owned most Canon lenses from 20mm to a 300 f4 lens. They have all performed very well and were consistently razor sharp. By comparison, this lens is a disappointment. Not throwing it in the trash wishing I'd never seen it before unhappy but just not overwhelmed; maybe underwhelmed. It has barrel distortion and chromatic distortion on the edges of the image at 18mm.
Conclusion: The only reason I have this lens is because it came with my EOS 60D. There is a plethora of zoom lenses that are 10x more functional and all-around better than this lens. That being said, there's nothing wrong with this lens for someone as an introduction to photography. This would make a stellar lens for someone who is taking more pictures for fun. The lens is very sensitive, and the slightest pressure will rotate the zoom.