Archived posting to the Leica Users Group, 1996/12/31

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Subject: Re: Why 2-stroke film advance
From: jtan@netvigator.com
Date: Wed, 01 Jan 1997 02:00:15 +0800

George Huczek wrote:
> 
> Why does the M6 have a 2-stroke film advance lever? I find this
> had to get used to, since most of the other 35mm cameras I've
> used require only a single stroke film advance. I am finding the
> two stroke film advance to be a bit slow. Fortunately though,
> the lever recoils when tension is released from it, making the
> film advance seem very smooth.
>    I suppose that it may have something to do with the mechanical
>    gear-ratios that Leica has chosen to use in the film advance
>    lever. A single stroke film advance lever, which only moves
>    about 120 degrees, has to be geared to allow the film to make
>    the full movement to the next frame.
> Are there any inherent mechanical advantages (no pun intended
> here) in using a film advance lever that is not geared in such
> a way as to allow film advance in a single stroke?
> --
> George Huczek

Maybe I am not getting your point right but, the M6 has a ratchet
type film advance and thus you can do it in 1,2 or more if you like?