Hi solar gangs,
Does anybody know the etalon size in the Lunt Solar LS50THa Pressure Tuned telescope ?
Valery.
Etalon size in a Lunt Solar LS50THa PT
- Valery
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Etalon size in a Lunt Solar LS50THa PT
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Re: Etalon size in a Lunt Solar LS50THa PT
No, but i'm already considering buying one to take apart
http://brierleyhillsolar.blogspot.co.uk/
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Re: Etalon size in a Lunt Solar LS50THa PT
Why not order it today?marktownley wrote:No, but i'm already considering buying one to take apart
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: Etalon size in a Lunt Solar LS50THa PT
the internal etalon is 35mm and the external double stacker is 50mm
Stephen W. Ramsden
Atlanta, GA USA
Founder/Director Charlie Bates Solar Astronomy Project
http://www.solarastronomy.org
Atlanta, GA USA
Founder/Director Charlie Bates Solar Astronomy Project
http://www.solarastronomy.org
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Re: Etalon size in a Lunt Solar LS50THa PT
Hi Modders
Attention, big brother is watching us very closely
Attention, big brother is watching us very closely
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: Etalon size in a Lunt Solar LS50THa PT
35mm etalon to 50mm aperture - that's the best ratio yet of any of the Lunt scopes.
50mm aperture, that's as good as the same size as a 2" eyepiece holder
50mm aperture, that's as good as the same size as a 2" eyepiece holder
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Re: Etalon size in a Lunt Solar LS50THa PT
Yes, this is nice. But Lunt specified <0.75A instead of <0.7A for other etalons. Big difference at such band wide!marktownley wrote:35mm etalon to 50mm aperture - that's the best ratio yet of any of the Lunt scopes.
When we talking about the difference between 0.35A and 0.3A this is one thing - difficult to distinguish, but <0.75 and <0.7A
can be very noticeable.
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
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Re: Etalon size in a Lunt Solar LS50THa PT
For the same price as a Quark I think it will make a fine full disk scope.
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Re: Etalon size in a Lunt Solar LS50THa PT
+1marktownley wrote:For the same price as a Quark I think it will make a fine full disk scope.
"Solar H alpha activity is the most dynamic and compelling thing you can see in a telescope, so spend accordingly." (c) Bob Yoesle.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Largest full size 185 - 356mm Dielectric Energy Rejection Filters (D-ERF) by ARIES Instruments.
Re: Etalon size in a Lunt Solar LS50THa PT
Yeah looking back now I am thinking I should of got a Lunt 50, still won't see the Quark for a month.marktownley wrote:For the same price as a Quark I think it will make a fine full disk scope.
Alan