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Old 19-08-2019, 04:46 PM
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peeb61 (Paul)
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Stacking in Nebulosity

Folks,

I've stacked same exposure lengths with Nebulosity with really good success and just about ditched DSS and photoshop for the time being.

Took to the skies last night and captured various length exposures of NGC5139. eg 20secs, 40secs, 60secs and 120secs, as much as I could before the clouds rolled in.

To stack and process them in Nebulosity I cannot just dump them all into the mix and hope all is well at the end?

Do I need to stack them in groups of the same exposures and then stack them again at the end to get the final image then process?

Many thanks

Paul
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Old 19-08-2019, 05:12 PM
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Nikolas (Nik)
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Quote:
Originally Posted by peeb61 View Post
Folks,

I've stacked same exposure lengths with Nebulosity with really good success and just about ditched DSS and photoshop for the time being.

Took to the skies last night and captured various length exposures of NGC5139. eg 20secs, 40secs, 60secs and 120secs, as much as I could before the clouds rolled in.

To stack and process them in Nebulosity I cannot just dump them all into the mix and hope all is well at the end?

Do I need to stack them in groups of the same exposures and then stack them again at the end to get the final image then process?

Many thanks

Paul

see if it works
I'd be interested
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Old 19-08-2019, 05:42 PM
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peeb61 (Paul)
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Thanks Nik,

Just love your wish list!

Paul
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Old 19-08-2019, 07:18 PM
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billdan (Bill)
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Not that I've done it, but I believe you stack them separately and then stretch each stack to your liking.
Once that's complete you use Photoshop and bring in each stretched stack as layers and then blend them in.

Keep your fingers crossed that all the stars line up OK.

Someone with more experience with layers may chip in and give you the correct answer.
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Old 21-08-2019, 07:16 AM
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peeb61 (Paul)
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Thanks Bill and Nik,

I think I may have found the answer to my question...Batch and then Pre Processing Sets!

Will give this ago.

Paul
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Old 21-08-2019, 12:43 PM
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Hi Paul,

I used Nebulosity for stacking for years. I still use it for data capture.
Neb works pretty well but pre-process sub loading and then aligning every sub by clicking on two seperate stars is a pain.

Honestly, go get yourself a 30 day trial of Astropixel processor, it's soooooo much better, more accurate and user friendly. Then use PS for final adjustments.
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Old 21-08-2019, 01:55 PM
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The_bluester (Paul)
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APP takes a bit of head space to get used to but IMO gives better results more easily once you get your head around it. If you are using an OSC camera (Or combining RGB) the star colour calibration is very handy and easy to use, particularly compared to fiddling with sliders in DSS or trying to do colour balance in PS.
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