multiple pinholes?

might start to approach a zone plate type thing (multiplying the effect
of a pinhole)? just a guess. if the pinholes aren't totally black, it'd
probably just throw diffracted light around. definately worth a shot.

/aaron

> --- On Tue 04/20, Uptown Gallery < murray@uptowngallery.org > wrote:
> From: Uptown Gallery [mailto: murray@uptowngallery.org]
> To: pinhole-discussion@spitbite.org
> Date: Tue, 20 Apr 2004 00:49:29 -0400
> Subject: [pinhole-discussion] multiple pinholes?
>
> Hello:<br><br>Weird thought:<br><br>Pinholes, I read, have none of the
> optical aberrations glass is plagued by.<br>Resolution is
> low.<br><br>With a lens, symmetry (dual elements about a stop) cancels
> much aberration.<br>Alignment and coverage would probably be
> challenging, but would there be any<br>advantage to a 2-element
> pinhole?<br><br>Not two next to eachother, but one looking thru thes
> econd.<br><br>Thanks<br><br>Murray<br>
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Received on Wed Apr 21 11:01:04 2004