Hello to everyone I'm new in this forum and i live in Portugal. I'm an aviation spotter and i would like to buy a canon L series lenses to my Eos 500d but i need some opinions to make up my mind I started to take photos of aircrafts note so long ago and i still have much to learn so which one of this lenses would you recommend to me between the EF 70-200 F4 L IS and the EF 70-200 F2.8 L?
A favorite for airshow use is the 100-400mm L.
IMHO, 200mm is pretty short for aircraft in flight. I prefer the 70-200mm f/4L in good light. the older 70-200mm L's are good, but I avoided 200mm at f/2.8 which was their weak spot. The f/2.8 MK II is supurb.
If you have found 200mm to be enough for your photos, and cannot get the 70-200mm f/2.8 MK II, get the non IS fersion or the f/4 IS version for sharper images, but only by a small amount.