Tamron 28-75 or Canon 15-85?

Hi all... new to this forum and I own a Canon T1i with the 18-55 lens kit. Looking to upgrade to a general purpose walk-around lens that has better zooming capabilities, and have narrowed my choices to the following 2 lenses:

Tamron 28-75 f/2.8
Canon 15-85 f/3.5-5.6

Although I've read many reviews about both, just wanting to see if any of you own either of these lenses and can share some light on the matter.. perhaps with some pics..

Thanks much...

The T1i has an APS-C sized sensor, so the 28-75mm lens will significantly lose the wide angle end of the shots you take.

Therefore, the 15-85mm must be the better bet as it will actually extend the range that you have now.

John

I also have the T1i and just bought the 18-55 I am so happy with it. It is a great all around lens, I probably will leave most of mine home, other than a telephoto. Also i like to stay with canon lenses. way better quality than tamron. My daughter has tamron and they are junk.

To say that a company that has had very good lenses as the Tamron 17-50mm , Tamron 28-75 , Tamron 18-270 and now, tamron 70-300 VC and it's great 70-200mm and has developed the best vibration compensation system right now and excuse it as junk is faltering to the truth.
That being said, the Tamron 28-75 is a constant aperture F2.8 fast lens that is sharp from corner to corner from F4 onward. I Know because I have one. But if what you are looking for is a walkaround lens the Canon will be a better lens because the focal lenghts of the Tamron doesn't present itself as a walk around lens. It's neither a wide angle on a APS sensor nor a good telephoto being a bit short. For a walkaround lens even if the Tamron is sharper,go with the canon which has a better focal lengths for what you want to use the lens.