I need a rain cover on my 5D and 1D, my largest lens is the 100-400 and I do use it with the 1.4x converter on occasion.
From what I see the Kata and Think Tank seem to be the better choice just don't know how compact and easy to use they might be. None of my local stores have these to try it.
I would like to know what cover you have and the pros and cons?

