I have never understood the basis for this urban myth/truism.
For Zuikos at least, the opposite would seem to be the case going by
discussions on this list and lens tests.
For almost every focal length/zoom range the fastest lens would appear to
have better performance as far as I can determine:
350mm f2 300mm f4.5
250mm f2 200mm f2
180mm f2 180mm f2.8
135mm f2.8 135mm f3.5 ?
100mm f2 100mm f2.8
50mm f1.2 50mm f1.8
50mm f2 M 50mm f3.5 M
35mm f2 35mm f2.8
28mm f2 28mm f2.8
24mm f2 24mm f2.8 ?
21mm f2 21mm f2.8
35-80mm f2.8 35-70 f3.6
Hold the matches! - let me first say that far more important than these
differences is the users skill. F2 will not a good photographer make -
though it won't hurt ;-)
You may now strike your matches.
Giles
> From: "Peter A. Klein" <pklein@xxxxxxxxxx>
> I mentioned that as a rule of thumb, a "one stop slower" lens is better at
> normal daylight
> picture-taking apertures than its faster counterpart
> But your own tests show the 35/2 to be significantly better than the 35/2.8
> across the board, and someone else favored the 24/2's quality over the 24/2.8.
> What gives?
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