Archived posting to the Leica Users Group, 1999/10/13

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Subject: Re: [Leica] Re: Leica Users digest V12 #64
From: "Anthony Atkielski" <anthony@atkielski.com>
Date: Wed, 13 Oct 1999 23:49:18 +0200

From: Alexey Merz <alexey@webcom.com>
Sent: Wednesday, October 13, 1999 19:29
Subject: [Leica] Re: Leica Users digest V12 #64


> Bizarre way of doing arithmetic you have there, Anthony.
> 'Specially for an engineer. 5 um pixels give at best 200
> lines per mm.

My mistake.

> On top of that you're looking at interpolation for
> color, degrading the real resolution (in color) by
> another 2-fold or so.

Human vision is much worse at seeing color detail than brightness detail, so
this is not a problem.

> Whoops. We are down to 35-40 lp/mm. Maybe 50-60 per
> mm if the system is completely optimal.

Almost as low as what many lenses provide, in fact.

> Of course *you* know how to build, inexpensive,
> defect-free, low-noise, gigantic CCD arrays. Right?

No.  What makes you think I'd know that?

  -- Anthony