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Old 30-11-2021, 05:27 PM
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pkinchington (Peter (Kanga))
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Tarantula reprocessed

At the suggestion of Marc and Nik I reprocessed my Tarantula image with less black clipping. Many more details were revealed such as the arch of nebulosity at the top of the image.
Cheers Kanga
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Old 30-11-2021, 06:04 PM
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Excellent.
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Old 30-11-2021, 06:29 PM
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Excellent.

Thanks Marc - I agree it is a vast improvement.
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Old 30-11-2021, 06:58 PM
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Perhaps too light a background or too much Ha overwhelming other colours. Yes the original was black clipped but now there are no dark areas of space.
Space is black.

Greg.
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Old 30-11-2021, 07:12 PM
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Perhaps too light a background or too much Ha overwhelming other colours. Yes the original was black clipped but now there are no dark areas of space.
Space is black.

Greg.

Hi Greg have attached a modified image is this more to your taste?
Cheers Kanga
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Old 01-12-2021, 08:13 AM
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Yes I think that's better.

Greg.
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Old 01-12-2021, 08:56 AM
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Whatever you did that is a massive improvement!
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Old 01-12-2021, 09:54 AM
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Hi Greg have attached a modified image is this more to your taste?
Cheers Kanga
TBH your original is on the money. There aren't that many pockets of sky background in your FOV and they look about right. So the perceived bright field is correct. It's all Ha mostly.
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Old 01-12-2021, 11:00 AM
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TBH your original is on the money. There aren't that many pockets of sky background in your FOV and they look about right. So the perceived bright field is correct. It's all Ha mostly.
I agree Marc - I am just interested in people's tastes and was wanting to see what they liked .
Cheers Kanga
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Old 01-12-2021, 11:01 AM
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I agree Marc - I am just interested in people's tastes and was wanting to see what they liked .
Cheers Kanga
Well, stay close to the data is my advice. Reality is always more beautiful than popularity.
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Old 01-12-2021, 11:10 AM
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I think the first is much better, the second one is still too dark in the back ground. In the first one you have black back ground where it matters. Maybe some advanced work with back ground extraction may produce a better image.

At the end of the day, produce an image you are happy with. You are in this hobby to please yourself, not others. Take all the constructive criticism onboard still as it will help you get better. No one single person is right, especially with narrow band.

Cheers and clears.
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Old 01-12-2021, 11:38 AM
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At the end of the day, produce an image you are happy with. You are in this hobby to please yourself, not others.
Too right
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Old 01-12-2021, 12:38 PM
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Great stuff. Extremely detailed
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Old 01-12-2021, 12:45 PM
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The first is an accurate representation, if the data is there show it! This region is massive and very high in Ha
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Old 01-12-2021, 12:56 PM
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Quote:
Originally Posted by Bart View Post
I think the first is much better, the second one is still too dark in the back ground. In the first one you have black back ground where it matters. Maybe some advanced work with back ground extraction may produce a better image.

At the end of the day, produce an image you are happy with. You are in this hobby to please yourself, not others. Take all the constructive criticism onboard still as it will help you get better. No one single person is right, especially with narrow band.

Cheers and clears.
Hi Bart,
What is background extraction? How do I achieve it?
Cheers Kanga
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Old 01-12-2021, 02:01 PM
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The attached is more what I was thinking of. I agree best not to process to someone else's view as its your image. Others may disagree and that is fine that is just diversity.

I think these L extreme type images are a bit hard to process as they portray Ha as more of browny yellow red.

My personal preference is for an image to display a balance of colours not all red or all browny yellow. The star fields in this area have lots of blue giants so those stars are quite attractive. In the centre of the Tarantula are some of the largest stars known:

"One of the clusters in the Large Magellanic Cloud contains R136a1, currently the most massive and most luminous star known. R136a1 has a mass 265 times that of the Sun and a luminosity of 8,700,000 Suns. The star belongs to the super star cluster R136, located near the Tarantula Nebula. The LMC is also home to WOH G64, one of the largest stars known."

Background extraction is a Pixinsight process. Its job is correct unwanted gradients. I used automatic background extraction and subtraction of the gradient. In Photoshop I then used auto tone, contrast and colour to bring the colours back and then selective colour to turn the browny reds into more reddish reds.

You got some good data there.

Greg.
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Old 01-12-2021, 06:29 PM
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Hi Greg,
Thanks for your help. I look at pix insight and it scares me - I have to learn a whole new library of Jargon. Might have to bite the bullet though. The data was from my QHY163M mono camera (like the zwo 1600MM) and Ha and Oiii filters and stacked in APP. I then did some additional processing in photoshop.
Cheers Kanga
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Old 01-12-2021, 08:11 PM
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wow that new rendition is quite striking, well done!
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Old 01-12-2021, 08:19 PM
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Quote:
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Well, stay close to the data is my advice. Reality is always more beautiful than popularity.
ooo, that might be wrong . Isnt something more beautiful likely be more popular ?. Reality is often not beautiful at all.
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Old 01-12-2021, 08:29 PM
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excellent renditions Peter - plenty going on!
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