Archived posting to the Leica Users Group, 2002/04/29

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Subject: Re: [Leica] SF20 question
From: "olivier nguyen" <oliviertnguyen@hotmail.com>
Date: Mon, 29 Apr 2002 15:12:50 -0400

hi everyone,
in relation to TTL SF20 FLASH and distance, I would liek to ask a question 
for all expert here.

what is the closest distance to subject that SF20 can do TTL without washout 
detail?

thank you
Olivier


>From: Rolfe Tessem <rolfe@ldp.com>
>Reply-To: leica-users@mejac.palo-alto.ca.us
>To: leica-users@mejac.palo-alto.ca.us
>CC: Paul Chefurka <paul@chefurka.com>
>Subject: Re: [Leica] SF20 question
>Date: Mon, 29 Apr 2002 13:59:43 -0400
>
>
>--On Monday, April 29, 2002 1:33 PM -0400 Paul Chefurka <paul@chefurka.com>
>wrote:
>
>>As a complete newcomer to TTL twinkie flash, I have a stupid question.
>>Why does the SF20 manual tell you to transfer the lens aperture setting
>>to the flash when working in TTL mode?  I thought one of the points of
>>TTL flash metering was that lens aperture and subject reflectance were
>>taken into account automatically by the sensor in the camera.
>
>It is so the distance range for that f stop will be displayed. This is for
>information purposes only and there is no real need to transfer the f stop
>setting to the flash. It would be better if the manual made this clearer as
>you're not the only one who has ben confused by it ;-).
>
>--
>Rolfe Tessem
>rolfe@ldp.com
>Lucky Duck Productions, Inc.
>--
>To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html




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