Archived posting to the Leica Users Group, 2002/04/01

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Subject: Re: [Leica] reduce flash
From: "olivier nguyen" <>
Date: Mon, 01 Apr 2002 09:31:30 -0500

why do you do -0.5 or -1 EV on SF20 flash ?

I have my flash set at TTL and shot out door,  my light meter in camera say 
1 stop over.  would my camera flash SF20 still fire or it should not fire?  
in what case the flash will not fire?

According to what I experience, my flash keep flash anyway does not matter 
how much I over exposure.  Is this right? or is it something wrong with my 
camera TTL control?  How do i test to see my camera TTL control is correctly 

I just want to make sure I have use my flash correctly.

those problems above really pondering me and that why I am always worry and 
doubt about when I use flash SF20 on my LEica M6TTL


>From: Pascal <>
>To: LUG <>
>Subject: Re: [Leica] reduce flash
>Date: Mon, 01 Apr 2002 12:52:09 +0200
>On 31-03-2002 23:50 G. Michael Paine wrote:
> > Sorry I did not say. Usining M6 TTL.
>in case of large darker areas, you may need to adjust the flash output to
>-0.5 or -1.0 EV since the TTL flash will be tricked (the M6's light meter
>acts more like a centerweighted meter than a true spotmeter). There is a
>special button for this on the back of the SF20.
>Hope this helps,
>Visit my Leica photo pages at
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