How do people get orange/blue nebulosity?

JamminHyaku

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Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red



0a5053bb52c14a8bb33201b56a85cf85.jpg
 
I don't know if this is the answer for everyone, but in my case, I shoot in narrowband with a monochrome camera and when I combine the channels you can do so in such a way as to get the colours you want. When shooting with a one-shot colour camera (or a DSLR), if you use a programme like AstroPixelProcessor or Pixinsight you have to separate the channels to get the most out of astro images, and when you recombine them you can select the colours you assign them to.
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red

0a5053bb52c14a8bb33201b56a85cf85.jpg
In the real world, the blue is from reflection nebulae, the orange is from starlight shining on dust clouds.

For example, two images, both taken with a standard mirrorless camera, no filters, no nothing.
Just a stack of many exposures because reflection nebulae and dust clouds tend to be quite faint, and easy to lose in the noise.

(i) The Blue Horsehead nebula,

5d873fbe60cd4d709ee008e0c6c6cb97.jpg


and (ii) the Corona Australis Dust Clouds

e182411110954f3eb26873205ab1a332.jpg
 
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Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red

0a5053bb52c14a8bb33201b56a85cf85.jpg
This is SHO or HOO, check for hubble pallete. RGB on rosette never yields this. only applying narrowband does. with osc cams you need to extract these and follows the recipees

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Best regards
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Stefan
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red

0a5053bb52c14a8bb33201b56a85cf85.jpg
This is SHO or HOO, check for hubble pallete. RGB on rosette never yields this. only applying narrowband does. with osc cams you need to extract these and follows the recipees

--
Best regards
_____
Stefan
Are there any narrowband filters or anything I can get to get similar results? Like a 67mm filter
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red
For a split second, I thought you'd borrowed my image.....





51857544824_6135c0cac9_h.jpg


I use a modded camera and a duoband filter. A duoband only captures Ha and Oiii so during processing, you separate out the color channels and then recombine them in a different color pallet.





51918681596_359ca9a617_h.jpg




51739342887_346e61dfba_h.jpg






51740835814_5806b6d1a7_h.jpg






51741098100_b9245bb401_h.jpg
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red
For a split second, I thought you'd borrowed my image.....

51857544824_6135c0cac9_h.jpg


I use a modded camera and a duoband filter. A duoband only captures Ha and Oiii so during processing, you separate out the color channels and then recombine them in a different color pallet.

51918681596_359ca9a617_h.jpg


51739342887_346e61dfba_h.jpg


51740835814_5806b6d1a7_h.jpg


51741098100_b9245bb401_h.jpg
These are amazing! Which duoband filter do you use? Do they make them for regular camera lenses? Like in a 67mm size for instance?

Also do you possibly have a video link/tutorial on how you split the color channels, modify them to look like this, and put them back together? If not im sure I can find one, just never seen this done before
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red
For a split second, I thought you'd borrowed my image.....

51857544824_6135c0cac9_h.jpg


I use a modded camera and a duoband filter. A duoband only captures Ha and Oiii so during processing, you separate out the color channels and then recombine them in a different color pallet.
These are amazing! Which duoband filter do you use? Do they make them for regular camera lenses? Like in a 67mm size for instance?

Also do you possibly have a video link/tutorial on how you split the color channels, modify them to look like this, and put them back together? If not im sure I can find one, just never seen this done before
I use an iOptron L-Enhance....I'm thinking about selling it and replacing it with an even tighter bandpass Antila ALP-T . They only come in standard astronomical 2" size. You might be able to piece something together with step down rings, I don't know.

I had tried several different approaches to the post processing with poor results until I found this tutorial, that "clicked" for me. I have made a few different modifications for my particular work flow, but I'm to the point I process 90% of my nebula using a false color pallet now.

https://www.youtube.com/watch?v=QV6ObLVRvNk&t





51893470642_2fd7cb57b8_h.jpg




51722068484_920902cbc0_h.jpg
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red
For a split second, I thought you'd borrowed my image.....

51857544824_6135c0cac9_h.jpg


I use a modded camera and a duoband filter. A duoband only captures Ha and Oiii so during processing, you separate out the color channels and then recombine them in a different color pallet.
These are amazing! Which duoband filter do you use? Do they make them for regular camera lenses? Like in a 67mm size for instance?

Also do you possibly have a video link/tutorial on how you split the color channels, modify them to look like this, and put them back together? If not im sure I can find one, just never seen this done before
Something else to consider about using a narrowband filter....

They work extremely well at blocking out all light except for the faint Ha and Oiii. As a consequence, you have to shoot 5-10x longer subs just to get anything at all. All of the above were shot using 7-8 minute subs and my histogram was maybe, almost, 1/16 off the left edge.
 
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FWIW I shoot both narrowband (Triad Ultra Quad-Band) and wideband (STC Astro-Multispectra) and this is what I get as a default merge without any special color mappings in APP. This one still has a lot of noise due to the short exposure time (under 1h in Bortle 5).


My "dual" rig is here: https://www.dpreview.com/forums/thread/4432833



eeac43ef601d4b9e824ffa239a3351c7.jpg
 
Hi! I am just wondering how people get images of nebula where it is has a lot of orange and blue constrast? I believe it is called an L-enhance filter, is that correct? If so, do they make any for regular photography lenses?

With an astro modded camera and a standard astro filter everything is usually just red
For a split second, I thought you'd borrowed my image.....

51857544824_6135c0cac9_h.jpg


I use a modded camera and a duoband filter. A duoband only captures Ha and Oiii so during processing, you separate out the color channels and then recombine them in a different color pallet.
These are amazing! Which duoband filter do you use? Do they make them for regular camera lenses? Like in a 67mm size for instance?

Also do you possibly have a video link/tutorial on how you split the color channels, modify them to look like this, and put them back together? If not im sure I can find one, just never seen this done before
Something else to consider about using a narrowband filter....

They work extremely well at blocking out all light except for the faint Ha and Oiii. As a consequence, you have to shoot 5-10x longer subs just to get anything at all. All of the above were shot using 7-8 minute subs and my histogram was maybe, almost, 1/16 off the left edge.
Oh that is very good to know. I am still an amateur and generally do not have all night to shoot unfortunately.

Possibly dumb question, but is a dualband filter required to do this? A standard UV/IR filter on a modified camera should in theory include Ha and Oiii as well, so could you not still split the channels in photoshop and attempt to do this? Or is it almost impossible to achieve similar results because there isnt enough distinguished between channels?

I generally only shoot for 1-2 hours (amateur i know) so im not even sure I collect any information in the Oiii region. Ha is pretty dominating, though ive never tried splitting channels so I have no idea.
 

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