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Started by
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barry.armstead
Posted:
Wed Jul 16, 2008 11:17 am
Joined: 06 Jul 2006
Posts: 167
Location: canberra
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Mission for Canon EOS 400D owners
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Hi all,
I have a special mission for anyone with a Canon EOS 400D (AKA Rebel)DSLR and a standard 18-55 Lens.
I am writing an article on light pollution.
All I need is a photo from the capital cities listed below.
I will choose from several submissions if anyone is interested.
Please PM me with your interest and I will provide image capture parameters.
I will publish the link address to the completed article on the forums, with image credits listed for those chosen.
Cities in random order:
Sydney
Tokyo
New York
London
Moscow
Beijing
Paris
Berlin
Cairo
Singapore
New Delhi
Buenos Aires
Copenhagen
Athens
Rome
Baghdad
Wellington (NZ)
Abu Dhabi
Washington D.C.
Cheers,
Baz.
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goodfriend
Posted:
Mon Jul 28, 2008 3:47 pm
Joined: 28 Jul 2008
Posts: 1
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barry.armstead
Posted:
Fri Aug 01, 2008 12:51 pm
Joined: 06 Jul 2006
Posts: 167
Location: canberra
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Due to the lack of response, I have decided to do away with this list of cities. I will take entries from any large city in the world.
I'm not sure why I have has so little interest. So far only one person has actually delivered a photo. I feel the subject of light pollution is likely to be something near and dear to all astronomers/astrophotographers hearts.
Anyway, the offer still stands, if you want to help out, please PM me and I will provide image capture details so you can snap a bit of your night sky and send it to me.
Looking forward to your efforts,
Baz.
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quasar
Posted:
Sat Aug 02, 2008 4:39 am
Joined: 24 Jul 2008
Posts: 14
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Hi, Barry!
Please, let me know what is aprox. magnification that I have when I use my Canon EOS 400D in prime focus to my SkyWatcher achromatic refractor D=120 mm, F=1000 mm. I have bought an ultra wide angle SkyWatcher eyepiece- 80 degrees fov, 2'' and I intend to use it for eyepiece projection with an extendable adaptor 2'' that I have too.
Thanks and I hope more astrophotographers puts efforts in your new project.
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quasar
Posted:
Sat Aug 02, 2008 4:40 am
Joined: 24 Jul 2008
Posts: 14
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Dan=quasar
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barry.armstead
Posted:
Sat Aug 02, 2008 7:29 am
Joined: 06 Jul 2006
Posts: 167
Location: canberra
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barry.armstead
Posted:
Sun Aug 03, 2008 3:15 am
Joined: 06 Jul 2006
Posts: 167
Location: canberra
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In answer to your magnification question Dan, I can't seem to find a Skywatcher 120mm with a focal length of 1000mm, they all seem to be 900mm....
Maybe this calculater will help you.
http://www.csgnetwork.com/telescopemagcalc.html
Baz.
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quasar
Posted:
Tue Aug 05, 2008 10:19 pm
Joined: 24 Jul 2008
Posts: 14
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Thanks, but, finally, I have found in a book called "Introduction to digital astrophotography"- printed in USA; I like to learn and deeply understanding what to do in any kind of astrophotography. If interested, look at link below:
www.willbell.com
Cheers,
Dan
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quasar
Posted:
Tue Aug 05, 2008 10:28 pm
Joined: 24 Jul 2008
Posts: 14
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...and in link below:
www.astroshop.de
where you'll find not only Skywatcher 120/1000- product code SK1201EQ5, but tons of brands and accessories needed for serious stargazers around the world.
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Lydia
Site Admin
Posted:
Fri Aug 08, 2008 2:34 am
Joined: 03 Feb 2004
Posts: 645
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Baz:
I've sent your post on to my friends at the Houston Astronomy Society.
( H.A.S.)
Hopefully you will receive more replies.
Kindest Regrds,
LL/
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barry.armstead
Posted:
Fri Aug 08, 2008 5:35 am
Joined: 06 Jul 2006
Posts: 167
Location: canberra
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Thanks Lydia. 
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