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Calcium K Camera, Eyepiece

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#1 michaelcaba

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Posted 23 May 2024 - 12:54 PM

I am considering the addition of a Lunt Ca K diagonal to my Solar observing, and I am looking for recommendations regarding a good, but hopefully inexpensive, camera to image with; plus any eyepiece recommendations.  I have attached a fair, but not great, photo taken thru my Ha scope with a $75 eyepiece wifi camera. I would like to do better in both Ca K and Ha. Any thoughts?

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  • H-alpha 5-20-24-CROP.jpg

Edited by michaelcaba, 23 May 2024 - 12:56 PM.

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#2 Tapio

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Posted 23 May 2024 - 01:07 PM

A mono camera. The minimum and cheapest is ASI 120 mini, then asi220mm and then the price goes up and you get better properties.

Be warned that calcium is so difficult to human eye that some can't see a thing with it. Camera can.
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#3 michaelcaba

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Posted 23 May 2024 - 01:30 PM

A mono camera. The minimum and cheapest is ASI 120 mini, then asi220mm and then the price goes up and you get better properties.

Be warned that calcium is so difficult to human eye that some can't see a thing with it. Camera can.

Thank you. Question: Can an iPad run the software necessary to support the ASI 120Mini? 



#4 astroflak88

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Posted 23 May 2024 - 03:22 PM

Asi174mm is what 95 pct use for solar imaging in hydrogen and calcium
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#5 Jaimo!

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Posted 23 May 2024 - 11:52 PM

Asi174mm is what 95 pct use for solar imaging in hydrogen and calcium

Really, the pixels are so large...  wouldn't it depend on focal length of the scope?


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#6 C0rs4ir_

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Posted 24 May 2024 - 05:07 AM

Asi174mm is what 95 pct use for solar imaging in hydrogen and calcium

That was many years ago, meanwhile there are more modern options. For Ca-k the Player One Mars M II (imx462 mono) is a good option regarding QE in this wavelength.


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#7 astroflak88

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Posted 24 May 2024 - 10:51 AM

Really, the pixels are so large...  wouldn't it depend on focal length of the scope?

I believe between F/6 to F/8. I have an F/5, check out some of my full disc images in my posts.



#8 T~Stew

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Posted 24 May 2024 - 03:17 PM

Really, the pixels are so large...  wouldn't it depend on focal length of the scope?

Yes, I needed larger pixels than that for my big Ha scope, so got the ASI432MM which is excellent match to the Quark. ASI533MM and even the very small pixeled ASI678MM for a small scope with no barlow such as Lunt 40mm




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