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  #21  
Old 04-10-2009, 07:52 PM
jase (Jason)
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For a first, its not bad Marc. I do know you could do better. Whilst its a lovely vista, its lacking contrast. Looking forward to seeing more of your wide field adventures.
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  #22  
Old 05-10-2009, 12:37 PM
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multiweb (Marc)
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Originally Posted by jase View Post
For a first, its not bad Marc. I do know you could do better. Whilst its a lovely vista, its lacking contrast. Looking forward to seeing more of your wide field adventures.
Thanks mate. Just testing the waters. I expect much more than that as well.
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  #23  
Old 05-10-2009, 08:59 PM
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gregbradley
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Nice start Marc.

Did you stop down the lens a bit? Most camera lenses work best when
stopped down a few stops as they are not as accurate as telescope lenses and zooms are less accurate than fixed focal length camera lenses as well. The zoom mechanisms enters an optical compromise.

You'll get less coma as well if you stop the lens down.

But at the end of the day nothing beats a nice dark site so this is a good result from taking it from your light polluted backyard.

Greg.
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  #24  
Old 05-10-2009, 09:42 PM
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multiweb (Marc)
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Quote:
Originally Posted by gregbradley View Post
Nice start Marc.

Did you stop down the lens a bit? Most camera lenses work best when
stopped down a few stops as they are not as accurate as telescope lenses and zooms are less accurate than fixed focal length camera lenses as well. The zoom mechanisms enters an optical compromise.

You'll get less coma as well if you stop the lens down.

But at the end of the day nothing beats a nice dark site so this is a good result from taking it from your light polluted backyard.

Greg.
Thanks Greg - No I think I had the lens opened to the max. I'll have to try to stop it down maybe 75%. I noticed that zooming the lens made it easier to focus too. I have to play a lot more with it when weather allows. Got a lot to learn on this one still.
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