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Re: [OM] FW: OM 2SP Metering when using widest aperture

Subject: Re: [OM] FW: OM 2SP Metering when using widest aperture
From: "John A. Prosper" <prosper@xxxxxxxxxxxxxxxxx>
Date: Tue, 13 Oct 1998 11:37:11 -0400 (EDT)

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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