Canon Zoom Wide Angle-Telephoto EF 28-135mm f/3.5-5.6 IS Image Stabilizer USM Autofocus Lens

I recently purchased this lens, and have absolutely no regrets about it. This lens focuses extremely fast, and is super quiet. The photos come out awesome in both sharpness and color. I could not be happier. Haveing no L lenses I can't compre it to them, but I find it hard to believe that they would be that much better then this one as far as quality of the photos are concerned. I have tried it in all lighting situations, and yes the IS system really does help in low light situations. The range of this lens covers most shooting areas (28-135mm)that anyone will encouter, especially with the 1.6 crop factor taken into consideration on the Rebels and 10/20/30Ds (makes it a 45-216mm). So this is a great walk around lens, and has become the one that stays on my camera now probably 95% of the time.

I have removed two of my other lenses from my camera bag since purchasing this one, one of which is the Tamron 28-75mm f/2.8, which is an awesome lens in itself.

This is one superb lens that I would highly recommend to anyone using a camera made by Canon that utilizes the Ef lens mount. The only other Canon lens compariable is the 24-105 "L", but for less then half the price you can get this one. So for those on a budget, like myself, that doesn't include the "L" glass, then this is definately a must have lens for your camera bag.

Pros:
1. IS System (awesome for low light)
2. USM (super fast and accurate focusing)
3. Quality of photos (always a must)
4. Could list multiple more reasons to have this lens, but will stop here.

Cons:
Haven't found any as of yet, and at this point I don't think I will.