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  1. Galleries
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  4. » Sun in H-alpha of 12/01/2022 (detail)

 
Sun in H-alpha of 12/01/2022 (detail)...

Sole in H alpha

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Sun in H-alpha of 12/01/2022 (detail) sent on January 20, 2022 (11:09) by Daniele Bonfiglio. 106 comments, 8133 views.  [editors pick]

1/125 f/16.0, ISO 400, tripod. Montagnana, Italy.

Fotocamera al fuoco diretto di un telescopio DayStar Solar Scout 60/930. Stacking di 500 migliori foto su 1200 con Planetary System Stacker. Elaborazione finale con PS, incluso l'inversione della luminanza sulla parte interna al disco solare.



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avatarjunior
sent on February 16, 2022 (9:47) | This comment has been automatically translated (show/hide original)

Hello everyone,
I point out that on February 2 I managed for the first time to resume a beautiful solar flare cute. I did a timelapse that covers a time span of 48 minutes and shows the evolution of the blast. Each frame of the timelapse corresponds to the stack of 400 photos taken in the 2-minute interval. Unfortunately you can't upload videos to Juzaphoto, so I'll copy an external link below. In the video you can see the event repeated 4 times, 2 times at 3000x speed compared to real time, then 2 times at speed "only" 1000x compared to real time.
Hello, Daniel
https://photos.app.goo.gl/habodJVHtNL3ZpvAA

avatarjunior
sent on February 16, 2022 (15:13) | This comment has been automatically translated (show/hide original)

really mind-blowing timelapse, well done ! congratulations, Daniel 8-)
personally I appreciated more the 1000x, you have the right time x better distinguish the details

avatarjunior
sent on February 17, 2022 (9:23) | This comment has been automatically translated (show/hide original)

Hello Serafino, thank you very much! Yes, the idea was to show first the 3000x as a fast and "fluid" timelapse, then the 1000x as if it were a "slow motion" of the previous one, to better distinguish the details. Then putting the video in continuous you can again review the 3000x to appreciate it better after the brain is trained! ;-)

avatarsenior
sent on February 19, 2022 (17:21) | This comment has been automatically translated (show/hide original)

@Serafix
Filter --> Camera Raw -->
Luminanzain vers. 2022 has been moved

to which CR card is it?

avatarjunior
sent on February 19, 2022 (22:40) | This comment has been automatically translated (show/hide original)

in the "Details" tab.
if you do not find it I suggest you rummage in the Adobe online help.
or in the numerous videotutorials on YouTube

avatarjunior
sent on February 20, 2022 (6:58) | This comment has been automatically translated (show/hide original)

Good morning Serafino, in the week I did some other tests with the CR noise reduction filter on a photo of the sun, this time with some success. In fact, I realized that the filter has an option called detail that I believe indicates the level of detail that you want to preserve. I saw that by putting at 100 the level of noise reduction is the detail, you get a minimal effect but just enough to reduce small-scale noise without losing the details. What is the approach you use? Thanks and hello, Daniele

avatarjunior
sent on February 20, 2022 (14:07) | This comment has been automatically translated (show/hide original)


avatarjunior
sent on February 20, 2022 (14:13) | This comment has been automatically translated (show/hide original)

Also keep in mind that with the command "Noise Reduction / Luminance" you can reduce the noise produced by our cameras. There are two forms of Noise: Luminance Disturbance (in the grayscale, it makes the image grainy) and Chromatic Disturbance that produces color artifacts in the image. Moving the Luminance slider to the right reduces grayscale noise; Moving the Colors slider to the right reduces color noise.
here too I always look for a middle ground by getting there in stages.

avatarjunior
sent on February 21, 2022 (17:13) | This comment has been automatically translated (show/hide original)

Hello Serafino, thank you very much for the interesting suggestions.
I have Photoshop 2022 with Creative Cloud Desktop of which I have a monthly subscription.
When I was referring to the details option, I meant the "detail" sub-option (at least that's what it's called in the English version) of CR's noise reduction filter.
As you can see in this screenshot photos.app.goo.gl/w4iqS6CYHextmpux5 I set to 100 both noise reduction and the "sub-option" detail and it seems to me that the effect you get is good, that is, it reduces the noise a little without losing in detail.
hello, Daniele

avatarjunior
sent on February 21, 2022 (18:07) | This comment has been automatically translated (show/hide original)

Sorry.... my indications referred to the vers. 2020.in
theory nothing changes, unfortunately sometimes, updating a version, they "mess up" the commands by moving some tab or option. you find yourself disoriented looking for them.
cmq strictly speaking, yes, I would say correct as you explained ;)

avatarsenior
sent on February 22, 2022 (7:48) | This comment has been automatically translated (show/hide original)

in the tab "Details

you found thanks!
... it does not seem to me to be of the same effectiveness as the Denoise filter though, or am I wrong?

avatarjunior
sent on February 22, 2022 (8:25) | This comment has been automatically translated (show/hide original)

I advise you to do several tests.
I have been using it with satisfaction for some years ;-)

avatarsenior
sent on February 22, 2022 (20:19) | This comment has been automatically translated (show/hide original)

I advise you to do several tests

of course ;-)

avatarsenior
sent on February 22, 2022 (20:21) | This comment has been automatically translated (show/hide original)

As you can see in this screenshot photos.app.goo.gl/w4iqS6CYHextmpux5 I set to 100 both noise reduction and the "sub-option" detail and it seems to me that the effect you get is good, that is, it reduces the noise a little without losing in detail.

I also tried the same settings on a very noisy photo but putting 100 the details sub-option is absurd, scary artifacts come out. I don't know why the same thing didn't happen to you.

avatarjunior
sent on February 23, 2022 (13:29) | This comment has been automatically translated (show/hide original)

sorry.... my indications referred to the vers. 2020.

Figurati Serafino, indeed thanks for the tip ... I think I will use more noise reduction than CR in the future!

avatarjunior
sent on February 23, 2022 (13:32) | This comment has been automatically translated (show/hide original)

I also tried the same settings on a very noisy photo but putting 100 to the details sub-option is absurd, scary artifacts come out, I left the default value 50. I don't know why the same thing didn't happen to you.

Strange because the opposite happens to me, in the sense that artifacts (at least those due to noise reduction) appear to me if I put a low value of the details sub-option... in fact I believe that this option regulates the level of detail above which to apply noise reduction, so a high value means that noise reduction is applied to a smaller portion of the image ... are you sure we are talking about the same thing?

avatarsenior
sent on February 24, 2022 (0:12) | This comment has been automatically translated (show/hide original)

are you sure we're talking about the same thing?

Yes if you confirm the values you see from your screenshot you posted

avatarjunior
sent on February 24, 2022 (8:41) | This comment has been automatically translated (show/hide original)

Yes if you confirm the values you see from your screenshot you posted

Hello Mario, yes I confirm!

avatarsenior
sent on February 25, 2022 (0:31) | This comment has been automatically translated (show/hide original)

Daniele I used the same adjustments but as I told you to those values is a disaster.
Will it be that the noise of your photo is quieter? ;-)

avatarjunior
sent on February 25, 2022 (9:01) | This comment has been automatically translated (show/hide original)

Daniele I used the same adjustments but as I told you to those values and a disaster.
Maybe the noise of your photo is quieter? ;-)

It can be, but it's hard to say without seeing the photo in question...


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