Solar Calcium K 1st sept.

[GUS.K (Ivan)]

Taken through ED80, Lunt B600 CaK module and ASI174.
Thanks for looking.
Ivan.

[multiweb (Marc)]

Very nicely done.

[Merlin66 (Ken)]

Ivan,
Well done!
How many frames did you capture?

[h0ughy (David)]

ivan,

love your results. whats the CAK module look like? bog standard ed80?

[Merlin66 (Ken)]

https://luntsolarsystems.com/product...ium-k-modules/
Can be used with any smaller refractor. No "up front" ERF required......

[h0ughy (David)]

Originally Posted by Merlin66

https://luntsolarsystems.com/product...ium-k-modules/
Can be used with any smaller refractor. No "up front" ERF required......

oh boy my next toy......and the us dollar is not bad either

[GUS.K (Ivan)]

Thanks Marc, Ken and David. Ken, the seeing was crap today, I took numerous files and this was the best out of the Lot, it was 200 frames. David, the Lunt B600 CaK filter looks the same as the H alpha blocking filters, and has the ERF installed in the drawtube end facing the objective. It can be used in scopes up to 100mm and the Cak filter is 6mm in diameter. You can also get them in 12 and 18mm. No other filters are needed.The ED80 is stock standard Orion.

[John W (John Wilkinson)]

Hi Gus,
Nice pic of sun in this wavelength. Can you see the sun's image with your eye?
Any focusing problems? Thanks, John W.

[GUS.K (Ivan)]

Hi John, I can see the image visually, looks like a purple white light image and is easy to focus, but The CaK filters are designed for imaging use, and viewing visually below 400nm is not recommended, I usually view the image on a laptop.