Archived posting to the Leica Users Group, 1999/12/15

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Subject: [Leica] Re: full moon
From: "Bernard Degaute" <bernard.degaute@club.innet.be>
Date: Wed, 15 Dec 1999 22:12:29 +0100
 
- ---------------Original message----------------
Date: Mon, 13 Dec 1999 14:39:36 -0800 (PST)
From: Godfrey DiGiorgi <ramarren@bayarea.net>
Subject: [Leica] Re: Full Moon ...

With a 600mm lens, the full moon disk at zenith is approximately 10mm in
diameter on film. Going up to 1000mm will yield a moon nearly 20mm in
diameter.

godfrey
- ------------------------


On the film the size of the full moon disk (as well as the sun) is 1mm/10cm
of focal length - so 6 mm with a 600mm lens. The height above the horizon
has no influence.

Bernard

bernard.degaute@village.uunet.be