My understanding of very-infinity photography (stars) is that what matters is
the effective lens opening. Since the subject is effectively a point source,
the light intensity isn't diluted by the magnification effect of longer lenses.
So a lens that is 25mm f/2 (12.5 opening) would create the same image as a
50mm at f/4 or 100mm at f/8.
Unfortunately, meteors move, so the longer the lens, the longer the track and
the more dilute the image.
Ideal? Get an f/1 fisheye or better..
(re:olympus-digest V2 #834)
On 23 Mar 99, at 1:02, olympus-digest wrote:
> Date: Mon, 22 Mar 1999 22:04:26 -0800
> From: "John Petrush" <petrush@xxxxxxxxxxxxx>
> Subject: Re: [OM] Auto Exposure Times & The Ideal Meteor Catcher
>
----
From: Tom Trottier, President, ACT Productions Inc.
infoanim@xxxxxx http://www.act.ca
+1 613 594-4829 fax +1 613 594-8944
199 Holmwood Ave, Ottawa, Ontario, Canada K1S 2P3
"Make it as simple as possible, but no simpler" - Einstein
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