Registered Forum User
 Mille
     Posts: 290
 Join Date: May 2004
 Location: Too Near Box Hill
 Mood: Don't tell them your name, Pike!
  
    
     Your zoom on the 400D will appear to be a 120mm - 480mm , fine for motor sport. You probably wont want anything longer. What costs is when you want wider appeture lenses- then it starts to get expensive.
 EFS are always marked up as such and simply wont fit the older bodies.