Quote Originally Posted by TLovern
I think you'll find the 500mm to have too much magnification. when I was shooting with my 300 fixed, I missed some really great photos because I couldn't pull back to capture the shots. Since then, I only shoot with a 200-400 (and at times the 200 may even be too much)

I have a couple of good heritage flight pictures, and one that would have been great, if I could have pulled back below the 200mm. As it was, I lost part of an A-10 wing and part of a mustang wing in the picture. This was a flight of an A-10, an F-15, and two P-51D's

Too much magnification can definitely hinder you at an air show.

And once the flying starts, you really don't want to be changing lenses.

My two cents - your mileage may vary.

Tim
From what you are telling me, it sounds that you are closer to the planes, than some of the air shows in Canada, so you are probably right in your assessment of lenses.

Ronnoco