Lens Rentals has some videos up showing the sizes of some of the big telephotos that is pretty interesting: http://www.youtube.com/watch?v=5_euUMN-V1s&hd=1
It's interesting what you get used to and consider "big". I shoot with a Sigma 150-500mm fairly often which is a fairly large lens but the long F/2.8 lenses dwarf it.
It's interesting what you get used to and consider "big". I shoot with a Sigma 150-500mm fairly often which is a fairly large lens but the long F/2.8 lenses dwarf it.