Archived posting to the Leica Users Group, 2005/01/01

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Subject: [Leica] Rangefinder Basics
From: jbcollier at shaw.ca (John Collier)
Date: Sat Jan 1 18:42:39 2005
References: <BAY101-F24C6EF1E3BB41F60C9C1B6CE9F0@phx.gbl> <F5F7203C-5C61-11D9-AC5F-0050E42E6E0B@shaw.ca> <524D1C91-5C64-11D9-9DFA-000A95C33F68@dodo.com.au>

I think you are saying the same thing I did but, just to be sure:

The M6TTL with a SF20 or SF24 or any other enabled TTL flash (a few 
Metz units and the Quantum) will indicate correct exposure even if the 
flash has actually overexposed the neg.

If you are quickly balancing your light sources in a low light 
situation, it is easy to select too large an aperture for the flash to 
handle. It is no big deal as long as you keep this in mind.

John Collier

On Jan 1, 2005, at 7:16 PM, Rick Dykstra wrote:

> John is correct in advising that the TTL sensor only indicates that 
> either sufficient light or insufficient light has been detected (shown 
> on the flash and in the viewfinder), but it wont show whether too much 
> light was received.  This could be an issue if using flash systems 
> that aren't very responsive to the camera's TTL commands.  My SF20 and 
> Metz 50 MZ-5 have been very well behaved.


In reply to: Message from mikezx18 at hotmail.com (mike zx18) ([Leica] Rangefinder Basics)
Message from jbcollier at shaw.ca (John Collier) ([Leica] Rangefinder Basics)
Message from rdcb37 at dodo.com.au (Rick Dykstra) ([Leica] Rangefinder Basics)