imagemeister wrote:
I just do not like f6.3 lenses on crop frame bodies - and I do not care who makes it - or what body it is. !
As mentioned, the Canon 100-400mm are really GREAT lenses - either version ! The older version will save significant $$$. Crop your way to 600mm and use pixel enlargement if making large print.
If size and weight matters, the 400 5.6 prime is also a GREAT choice - but no IS and zoom with your feet.
I agree and would like to add that as good as all the examples that have been presented I haven't seen any BIF. If you do want to do BIF you should also see how a third party lens will fast focus and also hold focus on a fast moving subject. It's not uncommon with in the group that I shoot with to see photographers switch a lens to let someone shoot with a new or different lens. They even take one of their own memory cards and place it in someone else s camera so that they can download the images at home and really see what can be achieved with a different set up. Take your time before you spend your hard earned money and know what you are getting.