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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 13 Oct 2012 (Saturday) 15:31
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M42: Orion Nebula

 
calypsob
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Oct 29, 2012 05:26 |  #16

what scope do you use to autoguide with?


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Acamacho
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Oct 29, 2012 20:07 |  #17

calypsob wrote in post #15181456 (external link)
what scope do you use to autoguide with?

I bought the orion magnificent mini package, but it's basically a finder scope that allows a 1.25" accessory.

And I don't mind others posting their versions honestly. I even posted to PM me to get the real data so people can tinker. :) Nighthound, thanks for the info and compliment! Currently I have a hotech laser collimator which has worked great so far. If the CLS or MPCC are the culprits, I'm not sure I can afford to test different filters/correctors to find something that works. If anyone has the above combo, or any other I'd love to hear their inputs!


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megrac
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Oct 31, 2012 14:47 |  #18

Acamacho wrote in post #15184381 (external link)
I bought the orion magnificent mini package, but it's basically a finder scope that allows a 1.25" accessory.

And I don't mind others posting their versions honestly. I even posted to PM me to get the real data so people can tinker. :) Nighthound, thanks for the info and compliment! Currently I have a hotech laser collimator which has worked great so far. If the CLS or MPCC are the culprits, I'm not sure I can afford to test different filters/correctors to find something that works. If anyone has the above combo, or any other I'd love to hear their inputs!


I use a CLS filter and an MPCC. I think you will find its the f3.9 scope as mine is f5 and get the same reflections but just on brighter stars. I wouldn't worry about them. All the best and biggest scopes in the world make reflections like those, I don't think they take anything away from the image.

Have a look at this image of M42 done one of the ESO 2.2 meter scopes.
http://www.eso.org …blicationjpg/es​o1103a.jpg (external link)


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Oct 31, 2012 18:54 |  #19

That's interesting. I have a Vixen R200ss(f4) and I use the MPCC(no LP filter) with no reflections visible.


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megrac
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Oct 31, 2012 19:26 |  #20

Nighthound wrote in post #15192417 (external link)
That's interesting. I have a Vixen R200ss(f4) and I use the MPCC(no LP filter) with no reflections visible.

Yes it is interesting. Maybe its a lack of light baffling? I can only see two in this image and i have no problem with them being there. Its a nice shot.


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Skip ­ Souza
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Nov 02, 2012 19:50 |  #21

Moderator admonition:

The thread just got a bit shorter. This is no place for personal attacks or responses. The only rules that are enforced here are the rules of the forum. If there are any disputes then use the "Report Post" button.

Now play nice.


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Nov 08, 2012 18:47 |  #22

amazing shot! cheers


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calypsob
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Nov 12, 2012 20:08 |  #23

megrac wrote in post #15192506 (external link)
Yes it is interesting. Maybe its a lack of light baffling? I can only see two in this image and i have no problem with them being there. Its a nice shot.

Yes I have read quite a bit about building telescopes on gary seronicks blog and he uses all kinds of different mediums in his telescope tubes to prevent light reflections. I wonder if a median stack would remove those circles since they would change from exposure to exposure?


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98silverlude
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Nov 12, 2012 20:09 |  #24

Very awesome shots.




  
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Acamacho
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Nov 23, 2012 13:02 as a reply to  @ 98silverlude's post |  #25

Update, 17-ish hours of exposure later:

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR


Tried to add 5s subs to add more detail to the blowout areas.

EDIT: Changed the image, since the original had more green than I liked. I think its part tired eyes and partly from using CLS filter. :)

EDIT: Slightly different color balance and flipped the image:

IMAGE: http://farm9.staticflickr.com/8338/8211067047_acfda55efb_c.jpg

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ama168
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Nov 23, 2012 14:12 |  #26

Wow!!! Amazing shot!


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HunterW
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Nov 23, 2012 14:32 |  #27

wow!
really nice shot


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Celestron
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Nov 23, 2012 17:27 |  #28

That last one looks great .




  
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M42: Orion Nebula
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