Poll for the Sharpest zoom ever

Big Ga wrote:

Hmmm .. I suppose one could consider the 400/2.8 to be simply a zoom with a zoom ratio of 1

so its actually a 400-400mm zoom.

Or is that a zoom factor of 0

??

thinking of the question though, my 11-16 tokina is pretty sharp. but then that's only got a zoom ratio of 1.6 - is that actually simply a prime with a bit of wiggle room ??

I think we need to define what type of zoom ratio we're talking about here ....