Archived posting to the Leica Users Group, 2010/05/29

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Subject: [Leica] night time saguaro cactus photo NOT taken with my cell phone
From: hlritter at bex.net (Howard Ritter)
Date: Sat, 29 May 2010 23:13:31 -0400
References: <9F07836ED74F1C42AA69DFBAF8A1E2F13A2AC073B4@MBX1.asc.local> <AANLkTinPl3KFNLGzMRVAnsucNtbJvDdCe5wMlABoQNC9@mail.gmail.com>
 
Depends on the focal length and what part of the sky, as the length of star 
trails varies from zero at the celestial pole to 15 degrees/hour at the 
celestial equator.

Check out this picture, centered directly overhead, with a D700 and 24-120 
zoom at 24mm, 30 sec.

http://gallery.leica-users.org/v/hlritter/Wyoming_001/

?howard

On May 29, 2010, at 7:14 PM, Robert D. Baron wrote:

> More seriously: how long of an exposure needed before you would have
> had 'star trails'?
> 
> --Bob
> 
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> Leica Users Group.
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In reply to: Message from kcassidy at asc.upenn.edu (Kyle Cassidy) ([Leica] night time saguaro cactus photo NOT taken with my cell phone)
Message from rbaron at concentric.net (Robert D. Baron) ([Leica] night time saguaro cactus photo NOT taken with my cell phone)