Zoom Lens for backpack
I recently purchased a Rebel T3i, and a good macro lens and now want a zoom lens to compliment it. More important then price is transportability. I will be traveling in the UK for a month with just a backpack (and using public transportation), so size and weight are important. The lens that seems to fit this best is the Canon EF 70-300 f/4-5.6 L IS USM. I see that the Canon EF 100-400mm f4.5-5.6L IS USM is preferred due its focal length, but do you still think I could get some reasonably good distance shots (birds on a wire) with the 300?
Thank you very much for responding