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M42 - The great bird - "Plastic Meadator" 150/750 + ZWO ASI

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#1 XS_Man

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Posted 11 March 2018 - 08:50 AM

Hi All, smile.gif

 

Here is my last picture with ASI 385 on the "great bird" of Orion.
It's a mix of short exposures 350 ms, 500 ms and 1 sec raw images taken
during 3 partial nights before arrival of clouds.

 

I choose my home-made little OTA, called "plastic Meadator", a Newtonian
150/750 made with a plastic 200 mm PVC hose and second-hand Meade optics.
With short 750 mm focal length I expect to have maximum field of view... But
M42 is too large !!

 

Processing was not easy, this nebula is weel-know for it's high dynamic
range !


SETUP :
--------
Newtonian "Plastic Meadator 150 mm F/D 5, on EQ-6 Mount
------------------------------------------------------

ZWO ASI 385 with Ir/UV-cut filter,
Acquisition software : Sharcap 3.0.
3200 x 0.35 second. Gain = 296. 07/03/2018
5440 x 1 second. Gain = 383. 25/02/2018
7716 x 0.5 second. Gan = 330. 26/02/2018
Darks.

Visual sort out of raw images.
Registration with DSS.
Processing and post-processing with Iris + Photoshop.

 

Final image, at 100% full size:

 

eao6.jpg

 

Albéric


  • edif300, Real14, mikewayne3 and 12 others like this

#2 cookjaiii

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Posted 11 March 2018 - 10:06 AM

Wow!  Beautiful image.  I love clearly seeing both the extended gas clouds and the Trapezium.  It looks like you can see hints of the E and F stars too.  


Edited by cookjaiii, 11 March 2018 - 04:56 PM.


#3 exaxe

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Posted 11 March 2018 - 10:34 AM

Hello Albéric,

it is a beautiful picture! it is amazing to see this cloud of dust in front of the trapeze as well resolved.



#4 GA-HAMAL

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Posted 11 March 2018 - 12:34 PM

I choose my home-made little OTA, called "plastic Meadator", a Newtonian

150/750 made with a plastic 200 mm PVC hose and second-hand Meade optics.

Are you seeking the further way of the development of astrophotography? biggrin.png

Do you have some photographs of the telescope?

Cool imaging smile.png



#5 Mert

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Posted 11 March 2018 - 03:12 PM

Great shot Albéric, I second the question for images of your setup,

that would really motivate other as well :waytogo:



#6 BenKolt

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Posted 11 March 2018 - 04:12 PM

Wow!  Great image, and I also would like to see pictures of your "MacGyver Telescope"!

 

Best Regards,

Ben



#7 Sado

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Posted 11 March 2018 - 04:53 PM

Very nice rendition of this very iconic subject.

Thanks

Frank



#8 Vassar1976

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Posted 12 March 2018 - 05:04 AM

Great work!  With so many M42's out there, you have created a very nice and unique representation, which isn't easy!

 

Thanks for sharing.

 

Rowland



#9 XS_Man

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Posted 12 March 2018 - 12:55 PM

Hi all,

 

Many thanks for your great messages. wink.gif

 

So here is "the beast", the "patchy" Frankenscope. Also named the "APO terror". lol.gif

 

- Second hand Meade 150/750 optics,
- Spider was given with the optics,
- Tube is a piece of 200 mm PVC hose evacuation, 
- Fixing rings coming from chimney duct accessories, support plate
  is made with plywood,
- Finderscope comes from  a XT12 and support is a modified one
  coming from an old Orion Optics 300/1600.
- Eyepiece holder is the original awful old eyepiece holder Orion Optics.
  Lot of free play. Very difficult focusing even if I add a large cork to help.
  No pain, no gain,  as you know !

 

Here are the links to pictures :

 

https://zupimages.ne.../18/11/58a5.jpg

 

https://zupimages.ne.../18/11/nk64.jpg

 

Albéric


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#10 calypsob

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Posted 13 March 2018 - 09:06 AM

Hi all,

 

Many thanks for your great messages. wink.gif

 

So here is "the beast", the "patchy" Frankenscope. Also named the "APO terror". lol.gif

 

- Second hand Meade 150/750 optics,
- Spider was given with the optics,
- Tube is a piece of 200 mm PVC hose evacuation, 
- Fixing rings coming from chimney duct accessories, support plate
  is made with plywood,
- Finderscope comes from  a XT12 and support is a modified one
  coming from an old Orion Optics 300/1600.
- Eyepiece holder is the original awful old eyepiece holder Orion Optics.
  Lot of free play. Very difficult focusing even if I add a large cork to help.
  No pain, no gain,  as you know !

 

Here are the links to pictures :

 

https://zupimages.ne.../18/11/58a5.jpg

 

https://zupimages.ne.../18/11/nk64.jpg

 

Albéric

Great job working with what you've got.  Its a fine image with very tiny stars showing through that I do not normally see in images of this scale.  One cheap upgrade that might help is a helical focuser, available on ebay.  You could then lock down your focuser and use the helical to finely tune focus.  https://www.ebay.com...jkAAOSwYxBaK3-X


Edited by calypsob, 13 March 2018 - 09:07 AM.


#11 anismo

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Posted 13 March 2018 - 06:38 PM

That is great.. The image, processing and the scope :) Very nicely done indeed. 



#12 XS_Man

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Posted 15 March 2018 - 02:44 PM

Great job working with what you've got.  Its a fine image with very tiny stars showing through that I do not normally see in images of this scale.  One cheap upgrade that might help is a helical focuser, available on ebay.  You could then lock down your focuser and use the helical to finely tune focus.  https://www.ebay.com...jkAAOSwYxBaK3-X

 

Hi Wes,

In fact, I have a spare focuser which is greatly better. But for me it's more funny to have a good

result with a basic setup !

 

 

That is great.. The image, processing and the scope :) Very nicely done indeed.

Thanks  Anis !

 

Albéric




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