It was mounted just in front of a Powermate in my 150mm refractor. As I said above it was a cold winter day so it doesn't seem unlikely that it broke by a thermal shock.
The filter I am now using is this https://www.baader-planetarium.com/en/b ... ilter.html however for some unknown reason it is not compatible with my Quark in its original configuration, I had to remove the telecentric for making use of it. Same with my front Baader DERF.
Blocking Filter, Mini ERFs and Alternatives
- krakatoa1883
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Re: Blocking Filter, Mini ERFs and Alternatives
Raf
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Re: Blocking Filter, Mini ERFs and Alternatives
Interesting ... thanks for sharing.
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
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Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/