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  #1  
Old 23-07-2009, 06:32 PM
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cookie8 (Vincent)
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M16 M17 M20 & Eta

Made the most of last week's clear moonless nights. Took me much quicker to find a guide star this time. Getting the hang of it now I reckon. comments welcome.
Modified Canon EOS 400D, Orion ED80 at prime focus. IDAS LPS filter
EQ5 mount autoguided by 3" WO refractor;Philips SPC900nc ; PhD
ISO800 4 X 5mins subs stacked in DeepSkyStacker with darks.
Vincent
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Click for full-size image (M20_noflats_20mins_cropped.jpg)
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  #2  
Old 23-07-2009, 07:09 PM
Craig_L
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Hey, nice shots Vincent. Maybe you could crop them for more visually satisfying compositions. Minor quibble but lots of detail there.
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  #3  
Old 23-07-2009, 07:09 PM
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Omaroo (Chris Malikoff)
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They look promising Vincent....but can you upload larger versions? They're too small to see!
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  #4  
Old 23-07-2009, 08:07 PM
Hagar (Doug)
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A nice collection Vincent, It would be nice if the images were a little bigger.
Well done.
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  #5  
Old 23-07-2009, 09:11 PM
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cookie8 (Vincent)
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Here are the higher definitions
M20
M16
M17
Eta

Hope it works
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  #6  
Old 23-07-2009, 09:25 PM
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lesbehrens (Les)
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nice. the bigger pictures are much better
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  #7  
Old 23-07-2009, 09:35 PM
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Omaroo (Chris Malikoff)
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Oh yep - that's better. Very nice set indeed.
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  #8  
Old 24-07-2009, 07:05 AM
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troypiggo (Troy)
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Very nice!
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  #9  
Old 24-07-2009, 08:24 AM
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CoolhandJo (Paul)
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Looks like the filter works well considering the amount of detail for the short sub time.

Nice.
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  #10  
Old 24-07-2009, 09:53 PM
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Nice images Vincent, seems like the IDAS LPS filter is really making a difference when you are fighting local light pollution.
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  #11  
Old 24-07-2009, 10:57 PM
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cookie8 (Vincent)
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Quote:
Originally Posted by Tamtarn View Post
Nice images Vincent, seems like the IDAS LPS filter is really making a difference when you are fighting local light pollution.
Yes. It's magic this filter. I can see stars down to mag 4.1 only at my place.Moderately polluted I would say.
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  #12  
Old 25-07-2009, 10:01 AM
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Hi Vincent

We noticed that your images have a green cast sometimes it depends on individual monitors. If you want a more natural tone all you have to do is adjust the green channel in curves it alters the amount of green in the image If your image looks OK on your monitor that's fine..

I hope you don't mind I am just making a suggestion it's a very basic adjustment if you want to try it.

In Photoshop

Go to Image Adjustmests>Curves
Click on the blueV box Click on Green then click on the centre of the curves line
Drag it vertically downwards keeping on the centre line of the grid
(Keep an eye on the colour change in your image particularly the background )
Stop when the colour tone is to your liking then click OK

It just depends on how much you push the curves as to whether you want more green or more majenta
Now you have the colour tone correct but the image is too saturated

Go to Image Adjustments>Saturation
Move the Saturation slider to the left (desaturate) once again adjust to your taste

Here is the result of using the method on your image
You may prefer less majenta but you can adjust to your personal taste

Barb


Click image for larger version

Name:	3738118331_c61a539955_b.jpg
Views:	8
Size:	197.8 KB
ID:	61025 . Click image for larger version

Name:	3738118331_c61a539955_b - ps.jpg
Views:	10
Size:	181.1 KB
ID:	61026

Last edited by Tamtarn; 25-07-2009 at 12:48 PM.
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  #13  
Old 25-07-2009, 01:00 PM
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cookie8 (Vincent)
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Thanks Barb. Useful advise you have. You are right that it looks a bit green. Still learning how to use Photoshop sometimes too lazy to use. They were only processed with the software that came with my DSLR.
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  #14  
Old 25-07-2009, 02:24 PM
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Quote:
Originally Posted by cookie8 View Post
Still learning how to use Photoshop sometimes too lazy to use. They were only processed with the software that came with my DSLR.
If that's the case you have done an extremely good job Vincent

Regarding Photoshop - Just print off my mini tutorial open your image in Photoshop and follow my directions.

They look complicated when you read them but once you have your image opened in PS you will find it's quite simple really.
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