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Old 02-07-2006, 05:56 PM
Itchy's Avatar
Itchy
still trying

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Another Corona

Hi everyone

Inspired by Bert's Corona Australis, I thought I would have a go too.

It was a promising evening when i arrived at Ken Charlwood's place but by the time i was set up and ready to image, light cloud began scatting across the sky. consequently I got less than half of the data I wanted.

Anyway here is the result:

Canon 300D piggybacked on a Meade LXD55 SN10.

Luminar 135mm @ f4, 6x4min at ISO1600.

Processed in IP and PS.
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  #2  
Old 02-07-2006, 06:12 PM
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strongmanmike (Michael)
Highest Observatory in Oz

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Excellent

Great image Itchi. I like it. this sort of wide field looks great.

If you do it again I'd love to see a really long exposure to really bring out that faint dusty nebulosity.

What's the field of view of that 135mm lens with the Canon?

Did you have much trouble with blue halos at all?

Mike
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Old 02-07-2006, 07:39 PM
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Itchy
still trying

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Quote:
Originally Posted by strongmanmike
Great image Itchi. I like it. this sort of wide field looks great.
Thanks Mike. I've been experimenting with this lens for a few months now. I really like the results I am getting. Not bad for a $30 market buy.

Quote:
If you do it again I'd love to see a really long exposure to really bring out that faint dusty nebulosity.
I'll will give it a go. I was dissapointed with the amount of data I did get, so I will definitely try again. I picked up a 2x teleconverter to match this lens today at the market for $10 so I am keen to give it a go too.

Quote:
What's the field of view of that 135mm lens with the Canon?
From a rough calculation, about 10x6.5 deg.

Quote:
Did you have much trouble with blue halos at all?

Mike
This lens is reasonable, particularly if it is stopped down a little. Wide open it is f3.5 but I usually image at f4-f5. There is still a little trouble with bright stars, but I can usually fix that in the processing. IP's star size & Halo reduction helps.
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Old 02-07-2006, 11:01 PM
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xelasnave
Gravity does not Suck

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I did not know where it was until now but I recognise that group of stars (I think)
Cracking shot
alex
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