halpha sun on 25 April

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stef41
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halpha sun on 25 April

Post by stef41 »

hello everyone,

the sun around 10am UT at the fs60 with its sm40 double stack, BF10, glasspath x1.7 and zwo178mm
S20210425-10h02UT-sm40DS-fs60-bf10-gpx1.7-asi178mm.jpg
S20210425-10h02UT-sm40DS-fs60-bf10-gpx1.7-asi178mm.jpg (1.13 MiB) Viewed 263 times
S20210425-10h03UT-sm40DS-fs60-bf10-gpx1.7-asi178mm.jpg
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cordially
stephane


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Re: halpha sun on 25 April

Post by solardave »

nice images


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Re: halpha sun on 25 April

Post by H-Alpha »

Nice photos Stephane!

Thanks for sharing.

I very much like the first where the proms and a thin circle are highlighted.

Can you please explain how you achieve this? Do you take two different photos, or is it the same photo with a darker version over the light (prom) one?

All the best,
Alexandros


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Re: halpha sun on 25 April

Post by rcwinter »

Hi Stephane

Great images, lovely detail, I ask the same as Alexandros

:bow2 :bow2

Cheers

Rich


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Re: halpha sun on 25 April

Post by Carbon60 »

Nice images, Stephane.

Stu.


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Re: halpha sun on 25 April

Post by EGRAY_OBSERVATORY »

Excellent captures Stephane and so well processed.

Terry


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Re: halpha sun on 25 April

Post by marktownley »

Very nice disks Stephane!


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Re: halpha sun on 25 April

Post by stef41 »

thanks to you :)
H-Alpha wrote: Sun Apr 25, 2021 6:42 pm
Can you please explain how you achieve this? Do you take two different photos, or is it the same photo with a darker version over the light (prom) one?
recurring question ;)

yes, I make two films: one with just the contrasted disc (gamma 60) and the other with the saturated disc and the prominences clearly visible (gamma 25).
I then put the two resulting images together in photoshop by overlaying two layers.

for the second image, it is a single film with a gamma of 40

Sincerely
stéphane


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