Archived posting to the Leica Users Group, 2001/06/01

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Subject: RE: [Leica] RE: RE: who knows where I want to focus?
From: "Austin Franklin" <darkroom@ix.netcom.com>
Date: Fri, 1 Jun 2001 19:53:16 -0400
 
Jim,

> I just wrote some
> autofocus algorithms and the electronic signal data that is returned from
> the AF sensors is incapable of making perceptual differences between being
> critically sharp and "just" being in focus.

What is the type of sensor you are using, and what is the sensors angle of
view?

> You either build a signal
> histogram in software or you get a digital voltage peak at the point where
> the camera electronics thinks what you are looking at is in focus.

What's the criteria you are using for determining focus?

Thanks,

Austin