George, first of all: I don't have the lens not have I used it, but I'd like to show you this: LINK


Quote Originally Posted by George Jogtich
I know it's not I Canon and especially not a Canon L lens.

It's not priced that way either []


Quote Originally Posted by George Jogtich
I only would be using this lens occasionally, and I haven't actually body (40D) as well is a 70 body.

For occasional use, the Tamron doesn't sound bad to me. If you don't really need the IS or the 300mm range, you might want to consider the Canon 70-200 F4L. It's a masterpiece and it fits the same budget. It would give you superb image quality and has a faster constant aperture, but it lacks IS and the 300mm range(which could be obtained by using an extender at some point).


Good luck deciding [] Oh and by the way, I'm not sure if you have a 40D or a 7D or both. I assume you have the 40D. I must say that I'd rather have a 40D with a good lens(or 2) than a 7D with a kit-lens[]


Jan