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20th March 2020 - APP 1.078 has been released !

2019 November: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse, Astronomer in Charge of iTelescope.net

2019 September: Astro Pixel Processor and iTelescope.net celebrate a new Partnership!

North American and Pelican nebula DLSR widefield  

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(@kevin-lewis)
White Dwarf Customer
Joined: 7 months ago
Posts: 17
October 1, 2019 11:08  

Stock Canon 5D MkIV and William Optics Zenithstar 61 with flattener on a iOptron SkyGuider Pro guided in PHD2 with ZWO ASI120mm and 30mm f/4 guidescope.

30 x 4 minute exposures of the Deneb region, 20 darks/flats and 50 bias frames captured with APT. Calibrated and integrated in Astro Pixel Processor then finished in PixInsight and PS. Full frame image with 100px crop on the borders to remove the dithering artifacts.

This is the full sized jpg from the image processing so you can see the corners, which are pretty good (not perfect but pretty good)

Center (Dec, dms): +44° 08' 03.276"
Size: 5.56 x 3.6 deg
Radius: 3.311 deg
Pixel scale: 3.07 arcsec/pixel
Orientation: Up is 341 degrees E of N

Deneb final FS


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(@vincent-mod)
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Joined: 3 years ago
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October 1, 2019 11:27  

Nice! No over processing, great detail. You might up the saturation a bit maybe?


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(@kevin-lewis)
White Dwarf Customer
Joined: 7 months ago
Posts: 17
October 1, 2019 12:02  
Posted by: @vincent-mod

Nice! No over processing, great detail. You might up the saturation a bit maybe?

I did consider lifting the saturation some more Vincent but in the very small regions where the Ha is more dense I was clipping the red slightly and losing fine detail so I left it at this level. I appreciate the constructive comments as sometimes you can get too close to your own work and miss the obvious and less obvious problems 🙂

I've got a spare Canon 5D MkIII body which I'm seriously thinking about modding for more Ha sensitivity but struggling to find someone in the UK to mod it lol I also need to invest in a proper EQ mount so revisiting targets for more data will be easier in the future.

The SkyGuider Pro is a great portable mount with the ZWO ASI120mm guiding it but I'm relying on plate solving from the DSLR and then manually re-targeting which is a pain to be honest, a simple slew to a known Ra/Dec position would be very useful.

best regards

Kev


(@vincent-mod)
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Joined: 3 years ago
Posts: 1416
October 1, 2019 12:11  

Ah yes, well that does make the image more impressive! Manually targeting, kudos from me. Take your time when picking your next mount, read about the negatives around them as well and which ones are considered good for what you want. Been there, picked the wrong one at first. 🙂


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(@kevin-lewis)
White Dwarf Customer
Joined: 7 months ago
Posts: 17
October 1, 2019 12:20  
Posted by: @vincent-mod

Ah yes, well that does make the image more impressive! Manually targeting, kudos from me. Take your time when picking your next mount, read about the negatives around them as well and which ones are considered good for what you want. Been there, picked the wrong one at first. 🙂

Oh trust me I know the downfalls. I was heavily into Solar Ha imaging for a number of years using a NEQ6 mount with a hand-built 4" f/11 refractor modded for Solar work. I lost interest and sold the equipment onto a friend who is still addicted to the sun lol.

I'm pretty sure I'll pick up an HEQ5 with belt mod for any serious astrophotography work but camera mod first. I like wide field images, hence the WO61 refractor, and wouldn't want anything much larger than that on the mount so it will work well at that sort of payload.

sgl7 10 1 web

regards

Kev


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(@vincent-mod)
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Joined: 3 years ago
Posts: 1416
October 1, 2019 12:40  

Ohh hand built, now that is awesome! Thanks for sharing. I guess you didn't make your own optics as well did you?


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(@kevin-lewis)
White Dwarf Customer
Joined: 7 months ago
Posts: 17
October 1, 2019 13:23  
Posted by: @vincent-mod

Ohh hand built, now that is awesome! Thanks for sharing. I guess you didn't make your own optics as well did you?

Life is too short for hand grinding optics lol. I used a Lyra Optics refractor with a D-ERF filter on the front and then the tunable ethalon out of a Coronado PST Personal Solar Telescope with some Borg adaptors to make up the correct optical path and spacings

Kev

 


(@vincent-mod)
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Joined: 3 years ago
Posts: 1416
October 1, 2019 13:27  

Agreed, too many cool things in life and too little time. 🙂 Really nice, did you make a overview of the built somewhere by any chance? I love reading those.


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(@kevin-lewis)
White Dwarf Customer
Joined: 7 months ago
Posts: 17
October 1, 2019 13:46  
Posted by: @vincent-mod

Agreed, too many cool things in life and too little time. 🙂 Really nice, did you make a overview of the built somewhere by any chance? I love reading those.

I did Vincent, the complete build was documented but I lost it on a website crash 🙁 Some of the build images can be found with this search link http://www.photosbykev.co.uk/?s=loha

Kev


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(@kevin-lewis)
White Dwarf Customer
Joined: 7 months ago
Posts: 17
October 1, 2019 13:52  
Posted by: @kevin-lewis
Posted by: @vincent-mod

Agreed, too many cool things in life and too little time. 🙂 Really nice, did you make a overview of the built somewhere by any chance? I love reading those.

I did Vincent, the complete build was documented but I lost it on a website crash 🙁 Some of the build images can be found with this search link http://www.photosbykev.co.uk/?s=loha

Kev

I found a link (without images) on the wayback archive lol http://www.photosbykev.com/wordpress/2011/11/29/pst-modifications /"> https://web.archive.org/web/20161115132612/http://www.photosbykev.com/wordpress/2011/11/29/pst-modifications/


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(@vincent-mod)
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Posts: 1416
October 1, 2019 15:14  

Haha awesome, thanks!


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