17 replies to this topic

[C0rs4ir_]

Hi,
somehow i got the filters better tuned the more i use the setup. Today was really nice seeing, at least early in the morning when all is still cool and in balance. Here are some of the best shots of the imaging session.
I think i need even a bit smaller pixels for this..

 

https://solarchatfor...e.php?id=112729

 

https://solarchatfor...e.php?id=112727

 

https://solarchatfor...e.php?id=112725

 

https://solarchatfor...e.php?id=112724

 

https://solarchatfor...e.php?id=112723

 

https://solarchatfor...e.php?id=112722

 

https://solarchatfor...e.php?id=112721

 

https://solarchatfor...e.php?id=112720

 

 

Nice weekend
Dennis

 

 

Baader Triband C9.25

Homebrew Ha-DS system

imx428, 200x5-6 ms exposures, gain: 0-15%
Autostakkert 4, IMPPG 2, Gimp 3

[gstrumol]

To call these images 'spectacular' is to do them an injustice!       

[Scope2]

WOW! Very nicely done Dennis.  The Homebrew is working GREAT! Clear Skies Pat.

[Aha63]

Any tech details on the homebrew to be found anywhere... wow factor is strong in these... 

[groom]

Excellent! Impressive! Outstanding, Dennis!

Clear skies. Peter

[rigel123]

These are excellent Dennis!  You do have something strange going on in a number of the shots that look a bit like pieces of Newton Rings but can’t figure out what might be causing them.

[gstrumol]

These are excellent Dennis!  You do have something strange going on in a number of the shots that look a bit like pieces of Newton Rings but can’t figure out what might be causing them.

Yes, I saw those too. Almost parallel bands ...

[Scuba2do]

Echoing all the sentiments, great detail, exposure, etc…..

 

 

Tony

[Foc]

Exciting images.

Lucky you live far off, or I would be knocking on your door to tune my 80mm scope!
That would then take me to the next step of unreasonable aperture fever.

Great images, but perhaps it might help if you directly. posted attached as few reduced size versions.

Edited by Foc, 20 June 2025 - 10:36 PM.

[C0rs4ir_]

Thanks all, yes the camera is heavy on newton rings, even with lots of tilt. Have to see how to adress it best.

[C0rs4ir_]

Great images, but perhaps it might help if you directly. posted attached as few reduced size versions.

I could do that but the point of them is that you can zoom into them since the resolution. Reducing the file size would equal reducing details down some inches of aperture.

Edited by C0rs4ir_, 21 June 2025 - 03:15 AM.

[C0rs4ir_]

Any tech details on the homebrew to be found anywhere... wow factor is strong in these... 

Its basically 2 Lunt 40 etalons rear mounted in a telecentric beam. You can find more info on different peoples implementations of it on dedicated "Solar-chats" or even here on the forum. 

Took me quite some time, readup and experimenting to make it work well though.

Edited by C0rs4ir_, 21 June 2025 - 05:57 AM.

[hopskipson]

Thanks all, yes the camera is heavy on newton rings, even with lots of tilt. Have to see how to adress it best.

Stunning images as always!

 

It's funny that Newton rings only show up in the lower middle of your image. Almost looks like a smudged fingerprint. I would check all your glass.

[C0rs4ir_]

Stunning images as always!

 

It's funny that Newton rings only show up in the lower middle of your image. Almost looks like a smudged fingerprint. I would check all your glass.

Thanks James. 

Yup, thats how the stacking software works. Almost all rings but the strongest are processed out by it.

[Aha63]

As a beginner I found the newton ring in this interesting. I have not seen any yet and had up until now only description of them. So thanks for sharing them While an error it dont really ruin the image for what it show. And thanks for tech tip search!

[C0rs4ir_]

As a beginner I found the newton ring in this interesting. I have not seen any yet and had up until now only description of them. So thanks for sharing them While an error it dont really ruin the image for what it show. And thanks for tech tip search!

Doesnt ruin it for me, too : )

Its just another small thing to optimize on my solar imaging journey.

Edited by C0rs4ir_, 22 June 2025 - 09:17 AM.

[C0rs4ir_]

Here some with removed Newton Rings (FFT Method):

 

https://www.astrobin...n/0/?mod=&real=

 

https://www.astrobin...m/0/?mod=&real=

 

https://www.astrobin...d/0/?mod=&real=

 

Not perfect but much better now.

Edited by C0rs4ir_, 23 June 2025 - 02:13 AM.

[stargazer julie]

Stunning, and WoW.