Astrophotography

The ARW get converted to DNG when I import the images in Lightroom (by choice. I don't want to deal with .XMP files). I use the sRGB colour space because I don't have a colour calibrator that can handle OLED screen properly. And AdobeRGB is far from being universal though it's a bit bette now with HDR supportbecoming more universal though with Rec. 907 colour space DCIP (I think) more common.

When I pass through (as the final edit step) Topaz DeNoise AI the files gets converted to .TIFF with 16-bit ProPhotoRGB colour space to retain as much as possible accuracy.
There's your problem, mate.

Always go from high bit depth (16), wide gamut, RAW to low bit depth (8), narrow gamut, JPEG - in that order.

If you reverse the order, you irreparably damage the file. Not the RAW file, of course, but all derivative files.

One cannot convert an sRGB file to a wider gamut, only the other way.
 
There's your problem, mate.

Always go from high bit depth (16), wide gamut, RAW to low bit depth (8), narrow gamut, JPEG - in that order.

If you reverse the order, you irreparably damage the file. Not the RAW file, of course, but all derivative files.

One cannot convert an sRGB file to a wider gamut, only the other way.
Lightroom doesn't edit sRGB colour space, it only displays the preview in that colour space. The RAW is always in wide gamut, when you change the format, to a compressed one, it's when you limit the colour space to one choice as the compression throws away the extra data of other colour space. The JPEGs will be in sRGB on the last export.

Maybe it's time to move to AdobeRGB on exports and previews. The display tech has changed so much in the last 10 years, from phones to TVs (though I doubt there are many who web browes or display pictures on their TV outside of power users like us).
 
Lightroom doesn't edit sRGB colour space, it only displays the preview in that colour space. The RAW is always in wide gamut, when you change the format, to a compressed one, it's when you limit the colour space to one choice as the compression throws away the extra data of other colour space. The JPEGs will be in sRGB on the last export.

Maybe it's time to move to AdobeRGB on exports and previews. The display tech has changed so much in the last 10 years, from phones to TVs (though I doubt there are many who web browes or display pictures on their TV outside of power users like us).
Sorry, Ovi. I completely misunderstood what your workflow was. You are completely correct that Lightroom uses ProPhotoRGB 16 by default on RAW files, unlike Photoshop (which I use - never could get my head around Lightroom ... ).

With Photoshop, you can choose your working colour space and bit depth in ACR, and I thought that that was what you were doing.

I can't explain why you are getting that awful result, but it does look like a workflow problem to me. Your nice camera should not be producing a result that's hard to achieve, even with the crappiest P&S ever made.
 
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First time trying to photograph a planet: Jupiter and 4 of its moons. This week Jupiter is the closest it will ever be to Earth for another 59 years, close enough that you can easily see it without tools, to get a decent crop if you have 500 to 1.000mm lens (or better telescope). Exposure is very tricky if you can't get enough magnification.
 
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First time trying to photograph a planet: Jupiter and 4 of its moons. This week Jupiter is the closest it will ever be to Earth for another 59 years, close enough that you can easily see it without tools, to get a decent crop if you have 500 to 1.000mm lens (or better telescope). Exposure is very tricky if you can't get enough magnification.
I seem to remember exposure in a single exposure is very tricky whatever the magnification. Jupiter itself is MUCH brighter than it's moons, anything that gets the planet right won't see the moons. The result I got through my celestron was fairly similar to yours just with the moons arranged differently - it was over 10 years ago, so no surprise the moons have moved.
 
A couple of my favorites from this past year.

Milky Way

MILKY WAY BETHEL RIDGE.jpg
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Comet C/2022 E3 (ZTF) Single Exposure, on a Move Shoot Move Rotator.

Comet C2022 ZTF.jpg
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Here's the other shot I meant to share earlier, it includes the Comet, Multiple Constellations, and a shooting star or two. It was just a shot to find the comet, before switching lenses, but I want to have this one printed and framed on my wall now that I see it.

Comet Big Dipper.jpg
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This is with the ancient Canon 1Ds . I don't have any fast wide-field glass , and f/3.5 is quite limiting for these old sensors. But for a first attempt , and less than optimal glass / sensor, i am pleasantly surprised. it hasnt coped too well with the light pollution rising up from behind the trees, i may be able to do something with it in post, or maybe not.

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I was wondering if we are being blanketed by smoke from Forest Fires in Canada. I know it was an issue last week for some east of us.

I live in North Dakota and we were also experiencing very heavy smoke yesterday, happily it is quite a bit clearer today. It looked like fog outside, and the red rubber ball in the sky, and was a problem for those with asthma or other breathing issues. Local media is reporting it is indeed due to forest fires up in Alberta.
 
I live in North Dakota and we were also experiencing very heavy smoke yesterday, happily it is quite a bit clearer today. It looked like fog outside, and the red rubber ball in the sky, and was a problem for those with asthma or other breathing issues. Local media is reporting it is indeed due to forest fires up in Alberta.
Well, it's official. The local news is reporting the fires in western Canada are causing the haze.
I've seen haze before but this is the worst I've ever seen. Spent three years in L.A. in the late seventies and even the smog alerts then didn't compare to this. 8pm and it's almost dark, yet I can still make out the disc of the sun relatively high behind the haze/smoke.
 
I'm in Eastern WA and we are smoked in right now as well. I was going to go out last night to get some Milky Way shots from a crazy dark spot and I chose not to go after the smoke rolled in yesterday. I'm going to just say, I blame it on the Canadian's who flew into the area last week... Silly Geese, fly back North!
 
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