Archived posting to the Leica Users Group, 2002/02/11

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Subject: RE: [Leica] Re: Digital and lens resolution was Re: APD out
From: "Austin Franklin" <>
Date: Mon, 11 Feb 2002 08:42:56 -0500

> Jim:
> >Astronomers cheat. They take four separate pictures, moving the
> sensor half
> >a pixel (right, down, left, up) slightly for each photograph, thus
> >capturing that data that falls in between pixels and that double
> >data that falls on one pixel. This is how they resolve double
> stars and the
> >like.
> So why couldn't a 4-chip camera be used?  Sorta like the 3-chip video
> cameras.

You can use a three chip camera (which is I believe what Foveon was
proposing), but it has problems all in and of it self...not that they can't
be overcome.  Space for the prism, space for three sensors, alignment in
three axis...


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