Canon EF-S 18-135mm f/3.5-5.6 IS (Price: Approx. $450) is an affordable all purpose lens designed especially for Canon beginner digital SLR camera users. The built quality are very similar to Canon Rebel XS, XSi and T1i body. It does not feel heavy and too long.
Focal length of 18-135mm (equivalent to 29-216mm) is very versatile. It is wide enough for indoor or long enough for outdoor.
There is no USM (ultra sonic motor) in the lens, so it will make a a bit of noise when the lens auto focus is activated. AF is moderately fast and very good for everyday use.
Image quality is very good, although it is certainly not as good as expensive high grade Canon L lenses. Bokeh is round and quite pleasing. (Check out full size images in my Canon XSi +18-135mm photo gallery)
Usage
Travel and general purpose : ****
Landscape : ****
Portrait/Still Life : ***
Candid/Photojournalism : ***
Sports: **
Alternative lenses are
- Canon EF-S 18-200mm f/3.5-5.6 IS which has longer reach but also more expensive and longer.
- Canon EF 28-135mm f/3.5-5.6 IS USM which is not wide, compatible to full frame Canon body and has USM. Built quality of this lens is better, but image quality is average.
Here is some pictures taken with Canon EOS Rebel XSi and Canon 18-135mm IS :

at 100mm, (equivalent to 160mm) the bokeh (background blur) is good enough for portrait

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{ 6 comments… read them below or add one }
You forgot mention which max. apertures this lens has. And the approximate price tag.
thanks updated.
I like the fireworks pic, really sharp.. (considering the shutter speed)
yes, it is actually taken by a complete beginner (pic2) he he he
What is the point of having these samples if they are in such small resultion?
You should put the full image here and let people watch it 1:1 only then you can check quality.
Ziv: click on my photo gallery link in the post
or click here: http://www.enchetjin.com/Canon-Lenses-1/Canon-18-135mm-IS/10292629_Zxze7#710903055_Tk2bR