Archived posting to the Leica Users Group, 2001/07/16

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Subject: Re: [Leica] re: should i buy a noctilux
From: "Mxsmanic" <mxsmanic@hotmail.com>
Date: Mon, 16 Jul 2001 19:15:53 +0200
References: <200107161621.MAA29501@unix2.netaxs.com>
 
Kyle Cassidy writes:

> fwiw, f 1.0 is NOT one stop faster than
> f 1.4, it's only a third of a stop faster.

This is incorrect.  1.4/1.0 = 1.4, and squaring that gives 2.0, and log2 2.0 =
1.0, therefore f/1.0 is fully one stop faster than f/1.4.
Replies: Reply from "B. D. Colen" <bdcolen@earthlink.net> (Re: [Leica] re: should i buy a noctilux)
 In reply to: Message from Kyle Cassidy <cassidy@netaxs.com> ([Leica] re: should i buy a noctilux)