[rbarry]

Hi Warrerj,

I was in a similar position to you last year and eventually opted for the Canon 70-200mm F4 IS L over the 2.8 non IS version. These lenses are more or less of similar value.

I know the low light capability of the 2.8 lens is better, but I really haven't been in many situations where the ambient light during day time hours has caused me a problem. The usefulness of IS for hand held shots coupled with the advantage of less weight to carry around, makes for a great combination. I have no regrets buying this lens after 18 months use. I also bought a Tamron 18-50 f2.8 about the same time, and these two lenses are the ones I always carry with me.

With saying that, Matt's suggestion of the Sigma 50-500mm is an incredible lens for the money, and one that when means allow I may invest in, as well as Matt's other favourite, a Sigma 10-20mm f3.5.

Rick.

Rick.