Archived posting to the Leica Users Group, 2006/12/27

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Subject: [Leica] Re: Best flash for M8?
From: FELIXMATURANA at telefonica.net (Félix López de Maturana)
Date: Wed Dec 27 10:05:25 2006
References: <200612271743.kBRHc7Je005348@server1.waverley.reid.org>
 
>
> Felix,
>
> Since TTL on Digital is very different from on film I would guess it 
> will only work in manual mode.  I do not know as I do not have an SF20 
> nor an M8.  I am simply talking from knowing how the flash has to work 
> on Digital.  With digital the sensor is like a mirror, very reflective.  
> Since it is so reflective the flash can not meter the reflected light 
> from the film plane and turn off at moment of proper exposure as it did 
> in film.  So with digital the flash fires a pre-flash to meter, then 
> almost instantly fires the exposing flash.  The need to change this is 
> one reason flash photography for digital has taken a while to get to the 
> point flash on film was 10 years ago.
>
> Hope this helps some.
>
> Harrison
I know as when going from film to digital in Canon. my flash had to be 
"retired" letting place for a new model but I'll try to shoot as simple 
as possible keeping my SF-20 that worked flawlessly in my N7 and R8.

Regards.

Felix.