Conclusion: I purchased this lens to use with my 50D. I wanted a lens that had a good zoom range, which this lens has. However, the lens has issues which doesn't make it a good buy for the price Canon is asking. First of all, I'm not at all happy with the sharpness of this lens; it just isn't there, no matter what shutter speed/f-stop you use. The first one I received was returned for not being sharp, and the second one I received wasn't any better.
Cons: Slow auto-focus, Poor build quality, auto focus mechanism jerky, not sharp, Poor Color Reproduction
Conclusion: This lens has been a big disappointment, very soft focus, loose front barrel, and after three months of use it is full of dust inside of the elements. I do realize that this is a kit lens; however it is the only one that has filled with dust and has that soft of focus. I can’t find any f-stop combination that works, can’t wait to buy a new L lens.
Fair upgrade from the 18-55, but far from the best
13 February 2011
Conclusion: I've had this lens since it first came out and I'm not very impressed with it. Vignetting is horrible, as is the chromatic aberration. If you love dark corners in your photos, as well as a purple fringe around your subjects, this is the lens for you! I can get the advertised 4 stops of image stabilization, which is a great plus, but the non-USM micro motor AF is very slow, and constantly searching in low light.
Summary: Bought from Ammo in Dec 2010. Use occasionally on 7D now but results are very poor particularly in stronger than normal light due to the dreaded chromatic aberration.....lots of it and all in lovely colours ....greens, blues and purples. You can stop it down, add filters, change exposure and ISO but its always there. If you print larger than 6x4 do not buy this lens. Even editing won't get rid of the worst CA.
Zoom potente, bello ma non balla.. anzi purtroppo balla!
3 weeks ago
Excerpt: Ho provato questo obiettivo perché era incluso nel Kit "canon Eos 600D + zoom 18-135"; avevo sceto questa versione perché rispetto al18-55 mi occorreva uno zoom maggiore. Consideriamo che questo obiettivo costa in media 200-300 euro quindi non possiamo a ...
Uno de los objetivos menos interesantes que he podido usar
31 January 2013
Excerpt: Cuando compré la Canon que ahora tengo decidí que teniendo por fin una cámara con un sensor excelente de 18 Megapixeles merecía la pena buscar un objetivo que no fuera el simple 18-55 mm. que trae de serie y, buscando un amplio rango focal, me decidí a pedirla con el 18-135 mm. Por ahorrar en el precio final, fue una pésima decisión.
Pros: Como zoom tiene un amplio rango de focales, es ligero, nítido en la zona central y barato
Cons: Distorsiones, aberración cromática excesiva, falta de definición en esquinas . . . Muy pocas ventajas