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Tamron 28-75mm f2.8 XR Di Zoom AF

Review Date: May 12, 2006 Recommend? yes | Price paid: $350.00 | Rating: 8 

Pros: Price, sharpness, color, great bokeh, light weight.
AF can go hunting when you need it not-to the most. Manual focus can be very tricky.

It's a great lens. Much better, IMO, than the Canon 28-135 IS. Much sharper, better colors, and has fixed maximun aperture through the focal length range. Very good for not-so-ideal lighting conditions. A GREAT value for the price. Compatible with full-frame cameras (which is VERY least to me). The only drawback (and for this price is expected to have some drawbacks) is that the AF goes hunting. Not very often, but it can be frustrating when it goes back and forth when you have a good shot and miss it because of erratic focusing. But, again, I'm not complaining too much because 99% of the time delivers quality of lenses 4X its price.

Canon EF 28-135mm f/3.5-5.6 IS USM

Review Date: Apr 16, 2006 Recommend? no | Price paid: $400.00 | Rating: 5 

Pros: Inexpensive, Image Stabilization.
Very, Very, Very soft even at f/8. Color gamut is rather limited. Feels cheaply built. Zoom creep can be intrusive. Zoom barrel can get "jammed" at times, Canon told me it was normal.

Folks, I think writing a negative review about a product you own is tough. But for the sake of honesty and being helpful towards others, I have to be critical of this piece of glass. For one, it does not get decently sharp until f/11-f/16 which is fine for day-time photography, but goes to the can as soon as there are less-than-ideal light conditions. Then the color reproduction is "acceptable" which in essence means fine for the common folk, but unacceptable for the enthusiast/professional. The zoom barrel can get "jammed" at times and won't let go until I release the shutter.

In short, this is a good replacement to the kit lens that come with all Canon cameras, but it's a far cry from what you would expect.