First light with C8 Edge scope.

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p_zetner
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First light with C8 Edge scope.

Post by p_zetner » Fri Jun 29, 2018 6:20 pm

Hello Everyone.

A long absence but I'm getting my feet wet with solar imaging again. I've invested in a C8 Edge scope and Point Grey camera with IMX174 CMOS chip so I'm looking forward to high frame rates and some success with high resolution imaging. Here are some first light shots. There's not much to see but I think the results bode well for the return of some solar activity down the line.

Cheers.
Peter.
fc2_save_2018-06-28-125442-0000_pipp_l4_ap1224_ImPPG_ImPlus_proc.png
fc2_save_2018-06-28-125442-0000_pipp_l4_ap1224_ImPPG_ImPlus_proc.png (2.32 MiB) Viewed 635 times
fc2_save_2018-06-28-112248-0000_pipp_l4_ap1175_ImPPG_ImgPlus_proc.png
fc2_save_2018-06-28-112248-0000_pipp_l4_ap1175_ImPPG_ImgPlus_proc.png (2.45 MiB) Viewed 635 times
IMG_2706_proc.jpg
IMG_2706_proc.jpg (2.63 MiB) Viewed 635 times

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Re: First light with C8 Edge scope.

Post by ffellah » Fri Jun 29, 2018 7:36 pm

Great surface shots with very nice detail, Peter. Very nice set-up also. Welcome back to this wonderful group.

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Re: First light with C8 Edge scope.

Post by Ibbo » Fri Jun 29, 2018 10:22 pm

Looks a nice setup and you should be well set for an increase in surface activity.

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Re: First light with C8 Edge scope.

Post by Valery » Sat Jun 30, 2018 2:40 am

Impressive setupt, Peter! And very nice resolution on the images.

However they looks somewhat overexposed on both my monitors. And I tried to make the second image a bit less bright and it shows more details. Hope you don't mind it.
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"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

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Re: First light with C8 Edge scope.

Post by Dave S » Sat Jun 30, 2018 4:08 am

Great first shots, and an impressive imaging train! I can't wait to see more of your work.

I agree with Valery, reducing the exposure should yield more detail.

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Re: First light with C8 Edge scope.

Post by marktownley » Sat Jun 30, 2018 6:14 am

That's an excellent image Peter, and a very nice setup too!
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http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!

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Re: First light with C8 Edge scope.

Post by Montana » Mon Jul 02, 2018 9:06 am

Wow! super images, looking forward to more from this set up :bow :hamster:
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Re: First light with C8 Edge scope.

Post by Derek Klepp » Wed Jul 04, 2018 1:33 am

Looks good Peter good to see you back.

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Re: First light with C8 Edge scope.

Post by p_zetner » Wed Jul 04, 2018 1:34 am

Thanks everyone for your very kind comments!
Valery: You’re right. There is more detail visible with the reduced exposure, although it still looks a touch too dark on my (uncalibrated) monitor. I have to control my inclination to push the contrast too far!

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Re: First light with C8 Edge scope.

Post by Valery » Wed Jul 04, 2018 2:59 am

p_zetner wrote:
Wed Jul 04, 2018 1:34 am
Thanks everyone for your very kind comments!
Valery: You’re right. There is more detail visible with the reduced exposure, although it still looks a touch too dark on my (uncalibrated) monitor. I have to control my inclination to push the contrast too far!
Peter,

You are correct. My interpretation of the image is a bit too dark. But this is because there is a limit of the dymanic range of the finished JPEG image. Really the best compromise is somewhere between.
I too took a lot of movies which looked good when I recorded them at the telescope in a full day light. But they were a bit overexposed when I process them in a usual room illumination be it window illumination or evening lamp illumination. It took some time correct this and now I recording the movies with a histogram filled for about 60% max.

But the main result of your images is that this setup works great and the resolution is remarkable, so your location is OK seeing wise.
Looking for more images from you.
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.

Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.

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Re: First light with C8 Edge scope.

Post by christian viladrich » Sun Jul 08, 2018 9:30 pm

Hello Peter,
Your first tests look very promissing !!
Best regards
Christian
Christian Viladrich
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Co-author of "Astronomie Solaire"
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Re: First light with C8 Edge scope.

Post by eroel » Sun Jul 08, 2018 10:28 pm

Peter:
Beautiful results and a beautiful setup too.
Regards,
Eric.

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