Quote Originally Posted by Excalibur2 View Post
Well if you compared the Canon zoom lenses mentioned to equivalent Tamron SP or certain Kiron/Vivitar (esp series 1) zooms you might change your mind.
I have owned for more than twenty years a Vivitar Series1 70-210 f3.5 zoom, the second version made by Tokina that's reputed to be one of the best.