Archived posting to the Leica Users Group, 1998/03/19

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Subject: Re: [Leica] FILL FLASH
From: c.blaue@bmsg.de
Date: Thu, 19 Mar 1998 10:30:01 +0100
 
Joseph,
thank you for putting things in an easy to remember place. The way you explain
it makes clear what is happening. This is important for the M6, since we have
to make the calculations by hand. 
Joseph Codispoti <joecodi@thegrid.net> writes:

     > FILL FLASH

     > *The shutter speed is set to the maximum allowed by the synch
     > capability of the camera, or lower (depending on light level
     > requirements).  *The lens opening is set for the highlight.  *The flash
     > is set for the amount of desired fill in the shadow areas, or contrast
     > between highlight and shadow.

     > For example: A side-lighted or back-lighted scene requires an exposure
     > of 1/100 (1/125) sec at f:8 The top synch speed for the camera is 1/50
     > sec.  The camera setting will be 1/50 sec at f:11.0 If the desired
     > ratio between highlight and shadow is 1:2, the flash is set to f:16;
     > for a ratio of 1:4 the setting would be f:22 Depending on the flash,
     > the setting can be made for manual or automatic mode.