A doubt about a Calcium Filter for solar observation

Use this section to discuss "standard" Baader/Coronado/ Lunt SolarView/ Daystar, etc… filters, cameras and scopes. No mods, just questions/ answers and reviews.
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anmalobo
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A doubt about a Calcium Filter for solar observation

Post by anmalobo » Sat Jul 25, 2015 11:36 pm

Hi:
A few days ago, I found this filter

http://agenaastro.com/baader-calcium-ca ... -1-25.html

Does somebody know it? Does it work well? Is it worth to buy it?

I ask it because before there were Calcium Telescopes for solar observations, but currently, I don't find them. However, there are modules, at least, sold by Lunt. The filter is cheaper than a module.

Regards
Angel

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marktownley
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Re: A doubt about a Calcium Filter for solar observation

Post by marktownley » Sun Jul 26, 2015 7:14 am

It will only perform slightly better than a white light continuum filter for imaging. The photos in the link are unrepresentative of what you can achieve with this filter. Either get a white light filter or save up for the Lunt is my advice.
Image
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!

Derek Klepp
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Re: A doubt about a Calcium Filter for solar observation

Post by Derek Klepp » Sun Jul 26, 2015 7:42 am

Angel the Lunt is the go.I use the Baader as a double stack

anmalobo
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Re: A doubt about a Calcium Filter for solar observation

Post by anmalobo » Sun Jul 26, 2015 10:18 am

Thanks.
Regards
Angel

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Montana
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Re: A doubt about a Calcium Filter for solar observation

Post by Montana » Sun Jul 26, 2015 11:32 am

Here is a post showing the difference between WL and with the Baader K line attached http://stargazerslounge.com/topic/24898 ... ine-25715/

Alexandra

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