Originally Posted by
Bob Salomon - HP Marketing
...
Nonsense! The faster and slower W/A lenses in the same focal length from the same manufacturer are not identical designs with one simply having a larger front element to speed it up. They are quite different in performance with the faster version always outperforming the slower version. Go to the manufacturer's web sites and download the curves. You will see that the faster lens has better MTF curves, better coverage, better distortion curves, better longitudinal color aberration curves and better light fall-off curves then the slower version.
Plus, of course, better illumination on the GG thanks to its faster speed.
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