On Tue, 13 Oct 1998 SiteMistic@xxxxxxx wrote:
|<< This is a particular puzzle on my 50mm f1.8 as the difference between
| > > f2.8 and f1.8 should be more than a whole stop and the meter still
| > > only changes by two thirds of a stop >>
|
| Actually, one stop from f1.8 would be f3.5. From 1.8 to 2.8 IS two thirds
|of a stop.
Check your math, Friend. One stop from f1.8 is 1.8 x 1.4 = 2.52; 1.8
to 2.8 is a stop and a third.
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