Need some advice.
I have an introductory Canon Eos, with two lenses, the longest is Canon 75-300mm.
I need to upgrade.
I've been told to upgrade lens before body, is that correct?
If so, there are a lot of different lens makers, Canon, Sigma etc, which should I be looking at.
I'm looking to spend between, about £800 and £1000 , any ideas on best lens for my money ?