I am looking for a 400mm autofocas (Cannon preferably) lense for my Cannon EOS300. It already has a 75-300 USM lense but i would like the added benifit of maybe a 200-400mm? if there is such a thing. Now here comes the drawback i have a maximum budget of £500 Pounds sterling (about $740 USD)
The situations for using the camera will be for aircraft movements/takeoff/landing etc. I am looking for a lense that will give me clear, and crisp pictures.
Any help you can give me would be greatley appreciated as i'm not exactley a genious when it comes to cameras.
Looking foreward to hearing your recomendations.