Foolishness? Those are very basic blurbs that writers assume anyone with a camera (and a suggestion of logic) will realise once they have a camera in their hands. And you don't know they do change? That shows what rubbish photography teacher you are. Please don't teach your kids, if you have any.
Originally Posted by Razr
You seem to know something about Av.. that's good. Now for the next lesson go to Lens Specifications Explained
For your benefit, I quote here right from the bottom line:
"EF 100-400 F/4.5-5.6L IS USM : An Electronic Focus lens with a telephoto zoom range from 100 to 400mm, with a maximum aperture of f/4.5 at the short (100mm) end and f/5.6 at the long (400mm) end."
Last edited by tim11; 10-26-2007 at 04:58 AM.
Nikon D90, D80
Nikkor 16-85mm AF-S DX F/3.5-5.6G ED VR, Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical (IF) macro, Nikkor 50mm F/1.4D, Nikkor 50mm F/1.8D, Nikkor AF-S VR 70-300mm F/4.5-5.6G IF-ED, Sigma 105mm F/2.8 EX DG Macro ||| 2x SB800 | SB600 ||| Manfrotto 190XB