Hi freaks
the summer was no good here, so very little chance to try out mods but now we had the second autumn day with sunshine
CaK full disk with UV/IR cut and K-line (23.09)
CaK full disk with IR-cut and K-line (24.09)
CaK full disk with additional UVB filter (baader venus filter) (24.09)
CaK full disk without K-line, only baader venus filter (24.09)
my conclusions: with my setup, it is of advantage to not use a UV/IR cut filter, instead I should use only an IR cut filter and replace the K-line double stack by a single UVB filter (Venus). Tests with a single K-Line have to be done though asap
Appenzellersun, CaK filter change
- swisswalter
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Appenzellersun, CaK filter change
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE
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Re: Appenzellersun, CaK filter change
Very interesting results Walter - thanks for sharing.
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Mike Garbett
Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/
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Mike Garbett
Selection of Solar and Deep Sky images on Flickr: https://www.flickr.com/photos/mikegarbett/
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Re: Appenzellersun, CaK filter change
Hi Mike
thank you very much
thank you very much
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa
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Re: Appenzellersun, CaK filter change
interesting to see this, a venus filter is on my list too...
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Re: Appenzellersun, CaK filter change
Walter, just to be clear, you're using the yellow Lunt stack in combination with the filters mentioned here?
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Re: Appenzellersun, CaK filter change
Hi Douglas
yes. The setup is as follows lunt hot mirror, lunt Cak stack filter, (K-line, or Venus or both), PST CaK filter #1, IR-cut
yes. The setup is as follows lunt hot mirror, lunt Cak stack filter, (K-line, or Venus or both), PST CaK filter #1, IR-cut
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa
from 7 am - 7 pm http://www.nanosys.ch
from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa