Archived posting to the Leica Users Group, 1998/01/13

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Subject: Re: [Leica] Off Topic: Multi-flash exposure
From: CHKARNES <CHKARNES@aol.com>
Date: Tue, 13 Jan 1998 23:18:57 EST

In a message dated 98-01-13 01:02:05 EST, you write:

<< Subj:	 [Leica] Off Topic: Multi-flash exposure
 Date:	98-01-13 01:02:05 EST
 From:	engp6002@leonis.nus.edu.sg (Lee Kay Ming)
 Sender:	owner-leica-users@mejac.palo-alto.ca.us
 Reply-to:	leica-users@mejac.palo-alto.ca.us
 To:	leica-users@mejac.palo-alto.ca.us
 CC:	rollei@mejac.palo-alto.ca.us
 
 Hi All,
 	Do anyone know how to calculate for multi-flash exposure?  For
 example, if the flash meter read f8, and you need f22 for depth of field,
 how many time do you need to fire the flash?
 Thanks
 Lee
 
  >>
The answer is 8.
At f/8, 1
At f/11, 2
At f/16, 4
At f/22, 8
You just double the exposure for each f stop smaller.
Charlie