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Old 31-10-2009, 07:50 AM
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arcseconds, oversampling, pixels...

Been noticing a few posts around recently talking about oversampling, matching pixel sizes to magnifications, f-ratios etc. Wondering if someone can point me in the direction of a link to do more reading on it? Want to understand it a little better and how my current equipment is suited and also for possible future acquisitions.

How does it relate to guiding? And imaging?
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Old 31-10-2009, 10:07 AM
Hagar (Doug)
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http://www.ccd.com/ccdu.html This should explain everything for you.
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Old 31-10-2009, 11:46 AM
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Thanks mate. Will have a read.
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Old 06-11-2009, 02:55 PM
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Attached is an article I wrote a while back in 2006 for Sky & Space that will give you a pretty good idea about sampling, arcs secs per pixel etc....It pretty basic but enough to get you up to speed on the theory.
Attached Files
File Type: pdf Beginners guide to Deepsky Astrophotography.pdf (189.2 KB, 98 views)
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Old 06-11-2009, 03:04 PM
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Excellent. Thanks so much for that. Downloaded and printing, will read tonight.
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Old 06-11-2009, 03:55 PM
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multiweb (Marc)
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Quote:
Originally Posted by cventer View Post
Attached is an article I wrote a while back in 2006 for Sky & Space that will give you a pretty good idea about sampling, arcs secs per pixel etc....It pretty basic but enough to get you up to speed on the theory.
Very cool article - thanks for sharing.
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Old 06-11-2009, 04:05 PM
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Good to see Chris is still alive and kicking

I have my own application which supplements CCD Calculator by providing some additional calculations. I hope to post the link shortly.
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Old 06-11-2009, 05:12 PM
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Yeah been out of it for a while. Have done no Astronomy/Astrophotography for a few years now. Life getting back to a point I have time again so back into it. Lucky I did not sell any of my gear.

A heck of a lot has changed equipment wise since in 3 years. So much choice now its awesome

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Good to see Chris is still alive and kicking
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Old 06-11-2009, 06:35 PM
dpastern (Dave Pastern)
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Attached is an article I wrote a while back in 2006 for Sky & Space that will give you a pretty good idea about sampling, arcs secs per pixel etc....It pretty basic but enough to get you up to speed on the theory.
Thank you for the link Chris - I'll digest this over the next few days. About to have a lot of free time on my hands :-)

Dave
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