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  #1  
Old 03-12-2004, 02:24 AM
rumples riot
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M42 focal reduced

Here you go people

2 x 4mins
iso 800
Stacked
Processed in photoshop
NoiseWare

First processing attempt at 2 am. Comments welcome

Paul
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  #2  
Old 03-12-2004, 06:01 AM
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Very very nice Paul, easily the best M42 i've seen you produce. Looks like you're getting a good handle on the D70 at prime focus now!

Excellent work.
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  #3  
Old 03-12-2004, 09:26 AM
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That's a great shot
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Old 03-12-2004, 09:42 AM
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Old 03-12-2004, 10:20 AM
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To cool Paul.
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  #6  
Old 03-12-2004, 10:33 AM
rumples riot
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Thanks all for the comments, there is more nebulosity in the shot, but I have to learn how to mask the trapesium so that it does ot get that washed out, might try doing something with it over the week end. Anyone got any tips on how to do this? Gary?

Paul
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  #7  
Old 04-12-2004, 06:50 AM
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Paul,
nice shot, I too am awaiting some clear weather, but you know that anyway. Very nice.
Not really sure how to enhance the faint stuff, without losing the bright. I will ask my boy, who has a better grip on Photoshop than me. I wonder also about a quick google with the question, as many must have gone down the same road.
Is there slight trailing, or coma? Not being clever, just asking. I don't recall the outcome of the reducer/field derotator/focuser issue, is this without the de rotator?
How about Eta Carina now?
Gary
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Old 04-12-2004, 06:53 AM
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Duh!!!
JUst discovered your Eta post, sorry.
Same deal. Maybe it is a bit of coma? Try it without the reducer perhaps. And on Eta, as the surrounding stars seem a bit brighter. Good to iron all these snags out early.
Gary
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Old 04-12-2004, 11:26 AM
rumples riot
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Gary, the trailing is caused from the LPI being used as a autoguider, I had the exposure times up to 8 seconds so that the LPI could guide. Unfortunately, this caused some trailing in each of the shots. I think that I need to raise the gain in the settings so that i can reduce the exposure time. There is also some field rotation which is strange as I had the field rotator going as well. It might have been my initial setup. I am limited to which stars I can align with. So yes you are right, With the reducer on I get a much broader FOV and I can focus (only manually) with the field derotator, but need to get a better alignment.

Will keep trying.

Paul
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Old 09-12-2004, 08:00 PM
rumples riot
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Did some reprocessing with the shot, did a Guassian mask and added another image to the stack. I think that this shows the nebula much better. What does everyone think?

Paul
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  #11  
Old 09-12-2004, 08:05 PM
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Very nice, the colour is much better. Great job!
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Old 09-12-2004, 09:07 PM
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  #13  
Old 09-12-2004, 09:39 PM
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I am not sure if you are already familiar with Jerry Lodriguss e-book but

http://www.astropix.com/HTML/J_DIGIT/TOC_DIG.HTM

describes how to combine two exposures-eg a long exposure for nebulosity and a short exposure for the Trapezium stars- using M42 as an example

Great image by the way
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  #14  
Old 09-12-2004, 10:15 PM
rumples riot
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Thanks Mate, I used his tutorial for making an unsharp mask, I will have a look at the long and short exposure tutorial, see I if i can improve this shot a bit.

Paul
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  #15  
Old 09-12-2004, 10:27 PM
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Wow send that one to S&S Paul.
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  #16  
Old 09-12-2004, 11:08 PM
rumples riot
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Hey thanks Mick for the incredible compliment, maybe I will send it, but I think I still have a very long way to go before I can really compete with the other guys out there, who get published often.

Thanks all the same, really appreciate the support.

Paul
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  #17  
Old 10-12-2004, 04:54 PM
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ving (David)
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man that a beautiful pic!
congrats!
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  #18  
Old 11-12-2004, 10:33 AM
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nice pic
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  #19  
Old 13-12-2004, 02:06 PM
rumples riot
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did some more fiddling with the shot. Looks a little over processed, but I like it for the nebulosity. What do you all think, does it look better or not?
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  #20  
Old 14-12-2004, 02:11 PM
rumples riot
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No comments? Thought I might get something, want to know if it is worth keeping for the album.
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