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[APML] Hartman Mask Question

To: astro-photo@seds.org
Subject: [APML] Hartman Mask Question
From: DnlMahoney@aol.com
Date: Thu, 13 Dec 2001 01:59:38 EST
Reply-To: astro-photo@seds.org
Sender: owner-astro-photo@seds.org

I recall reading something about a focusing mask that incorporated holes that were not round. Does anyone out there have any experience or ideas about variations of the Hartman focusing mask? Also, what effect do the hole sizes and locations have on the focusing outcome?

Clear skies,
Dan Mahoney
http://members.aol.com/dnlmahoney

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  - From: Anthony Ayiomamitis <anthony@perseus.gr>
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  - From: Stosh <stosh@ptd.net>

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