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Re: [OM] Asro photography with a 300mm Tamron f2.8. # 2977457701, ebay

Subject: Re: [OM] Asro photography with a 300mm Tamron f2.8. # 2977457701, ebay
From: "Carlos J. Santisteban Salinas" <cjss@xxxxxxxxxxxxx>
Date: Wed, 7 Jan 2004 09:04:42 +0100
Hi, Donald and all.

>The M42 shot is very nice indeed.

Thanks! Most likely the merit of an accurate polar alignment...

>The 200 f4 is very sharp and coma
>free.  I have not had a chance to use mine on astro subjects yet.  I
>do not very often get to an area with dark enough skies.  I am
>curious - what f stop and exposure time did you use?

4 minutes, wide open (f/4). On the other hand, the M31 shot was a 10 (?)
minutes exposure at f/4.5.

All the best,

...

Carlos J. Santisteban

<cjss@xxxxxxxxxxxxx>
<http://cjss.galeon.com>



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