i have a 450d and the stock 18-55 + the 55-250
i am looking at buying either the 7d and the 100-400
i mainly shoot surf and at the moment the actual surfer is blury and almost unidentifable
i want to be able to know who the surfer is by looking at the photos
i have about $500 at the but i will have enough money in about 6months
any suggestions
ive seen a post like this but they had a bigger lens already so yeah
thanks