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Busy sun in white light 5-25-23

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#1 PeterAB

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Posted 25 May 2023 - 09:41 PM

I took a crack at a white light sun image.   I used my solar film filter that I purchased to observe the last transit of Mercury.  Skywatcher Evostar 72ED.    I used a 0.8x reducer to make the sun almost on my SVbony SV305 pro.   My objective was to try out solar imaging with the equipment that I have at home now.  

 

I shot a video with SharpCap and used autostakkert!3 to make a .png file with a similar process I have tried with planets.   I not very handy at this process.   I think I did a bit of a hack job.   At any rate the image looks a little better than the eyepiece view and I'm happy with that.   Any processing tips would be most helpful.

 

I did notice that my camera views had a good amount of purple fringing.     Should I just shoot through a green filter to solve that issue?    My camera is color, but, I'm viewing the image in B/W.

 

0.24 ms exposures, gain 51 (low).   Video saved as a .ser file.

 

1-13_43_48_sun_AS_P30_lapl6_ap3624.jpg

 

 

Peter


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#2 gstrumol

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Posted 25 May 2023 - 09:57 PM

That looks good!

 

I use my AT80EDL and a Canon T7 DSLR to record a video, then run it through PIPP, AutoStakkert, ImPPG, and finally GIMP. That gives me something like this:

 

AT2.jpg

(click to enlarge)


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#3 james7ca

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Posted 25 May 2023 - 10:32 PM

I think your image looks good.

 

If you use a green filter on a one-shot-color camera you'll only be using one half of your pixels and you'd probably do just as well by simply extracting the green channel from your unfiltered color image (i.e. probably no significant advantage to filtering the green pixels twice -- once by the sensor's Bayer pattern and a second time by the additional green filter).




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