Solar filters adivice

[mpeniak]

Hi guys,

I have never done solar imaging before and do not have much experience with all these different filters. So far I have a basic filter to allow me to see the Sun in the visible spectrum.

I was thinking of getting hydrogen alpha or calcium filter for Celestron CPC925.

Could someone advice me on what are the options I have and what are the approximate expanses of these filters please?

Thanks,

Martin Peniak

www.martinpeniak.com

[Merlin66]

The easiest way to get into Ha solar observing is via a PST or small Lunt. To get a Daystar type filter for the C9.25 with a 100mm objective filter will probably cost around 4000gbp.

[Keiran]

Send merlin, Ken or NickH a PM...

EDIT: Looks like you got there already Ken

[Peter Drew]

Hello Martin. I suspect that you are hoping that you can purchase an add on filter along the lines of your white light filter. Unfortunately, it's not so simple as that with narrow band hydrogen Alpha and calcium filters. These require highly specialised filters in conjunction with further sophisticated items at the eyepiece end, these run into many hundreds of pounds. This approach is possible with a 9.25 SCT but IMHO this is not the most suitable telescope, you would probably be better off considering the very popular PST Solar telescope. You will probably get a whole raft of posts on this popular topic once a certain football match has finished!

[mpeniak]

Thank you guys, all's clear now.. apart from the sky

[NickH]

Little LS35 or PST is your best bet. Nice thing about the latter is that you can turn it into something far more formidable at a later stage