H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
- marktownley
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Love it! I enjoy a bit of modding and building like that myself.
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- Solar-Cologne
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Hi Mark,
Me too ... because man / woman knows what you have.
The last adapter comes on Wednesday ..... waiting.
Me too ... because man / woman knows what you have.
The last adapter comes on Wednesday ..... waiting.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Still waiting ..... My metalworker only managed to make the adapters after Easter ..... a very lucrative order came in between.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Is there any difference between these specialist, bino diagonals and nested pairs of "normal" star diagonals?
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
What do You mean with "normal star diagonals" ?
The Mirror-System ?
http://ems-bino.com/ems-product-line-english/
Yes, a big difference.
The image is like a pair of binoculars, upright and sideways ..... very important for our brain.
The Mirror-System ?
http://ems-bino.com/ems-product-line-english/
Yes, a big difference.
The image is like a pair of binoculars, upright and sideways ..... very important for our brain.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Thanks. I saw these mentioned years ago on CN and by Dave Trott.Solar-Cologne wrote: ↑Fri Apr 10, 2020 8:59 am What do You mean with "normal star diagonals" ?
The Mirror-System ?
http://ems-bino.com/ems-product-line-english/
Yes, a big difference.
The image is like a pair of binoculars, upright and sideways ..... very important for our brain.
I believe they were described as "lazy diagonals."
A high degree of precision seems to be required.
If you have to ask the price you can't afford them.
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
- Solar-Cologne
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Tatsuro Matsumoto in Japan builds very high precision.
It is not for nothing that Markus Ludes / APM and Matthias Wirth use often this EMS 60 ° two-mirror system.
https://www.cloudynights.com/topic/6654 ... 1200-bino/
https://www.apm-telescopes.de/de/ferngl ... o-152.html
http://www.astro-messe.de/AME2018/neuhe ... eiten.html
sunny Greetings
Achim
It is not for nothing that Markus Ludes / APM and Matthias Wirth use often this EMS 60 ° two-mirror system.
https://www.cloudynights.com/topic/6654 ... 1200-bino/
https://www.apm-telescopes.de/de/ferngl ... o-152.html
http://www.astro-messe.de/AME2018/neuhe ... eiten.html
sunny Greetings
Achim
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Now your talking this looks like a great quality rig Achim to
The PST BFs are actually 6mm it was only the very first ones from 04 that were 5mm.
I case you don't already know you may well have to apply some heat to your PSTs threadlock
with a good hairdryer to loosen it.
Brian
The PST BFs are actually 6mm it was only the very first ones from 04 that were 5mm.
I case you don't already know you may well have to apply some heat to your PSTs threadlock
with a good hairdryer to loosen it.
Brian
" Gentlemen only ever use Refractors "
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Hello Brian,
Nothing works with my hair dryer.
I'm looking for a hot air gun and big water pump pliers.
sunny Greetings
Achim
Nothing works with my hair dryer.
I'm looking for a hot air gun and big water pump pliers.
sunny Greetings
Achim
- marktownley
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
I like your styleSolar-Cologne wrote: ↑Sun May 03, 2020 6:57 pm I'm looking for a hot air gun and big water pump pliers.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Best of luck Achim ... I had a PST EP holder and spacer loosen in my hands this evening ,
the threadlock just fell to the floor .... and it is my original PST from 2005
Brian
the threadlock just fell to the floor .... and it is my original PST from 2005
Brian
" Gentlemen only ever use Refractors "
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Hello friends of the sun.
I went on vacation for several weeks in the German Eifel, near Laacher See.
After several attempts to solve the second PST etalon, I finally found a locksmith that has all the tools necessary to solve Locktite bonds.
The locksmith told me that we need at least 300 degrees Celsius for Locktite.
I got a little scared.
So we clamped the PST box in a large vice and I heated the etalon all around with a digitally adjustable hot air dryer.
We then took a pair of rough pliers and tried to loosen the etalon ..... no, no chance.
2nd attempt, warmed up again and tried with an approx. 80cm pipe wrench ..... finally the bond came off ....
Coronado....did a very good job.
My joy was very great, however, some mechanical traces were visible on the etalon, but it remained intact.
Now we have a cloud period here ..... laugh.
It is always the same before a "first light".
Now I have to attach the second C-ERF (160mm) in front of the second refractor and wait for our sun .....
Sunny Greetings
Achim
I went on vacation for several weeks in the German Eifel, near Laacher See.
After several attempts to solve the second PST etalon, I finally found a locksmith that has all the tools necessary to solve Locktite bonds.
The locksmith told me that we need at least 300 degrees Celsius for Locktite.
I got a little scared.
So we clamped the PST box in a large vice and I heated the etalon all around with a digitally adjustable hot air dryer.
We then took a pair of rough pliers and tried to loosen the etalon ..... no, no chance.
2nd attempt, warmed up again and tried with an approx. 80cm pipe wrench ..... finally the bond came off ....
Coronado....did a very good job.
My joy was very great, however, some mechanical traces were visible on the etalon, but it remained intact.
Now we have a cloud period here ..... laugh.
It is always the same before a "first light".
Now I have to attach the second C-ERF (160mm) in front of the second refractor and wait for our sun .....
Sunny Greetings
Achim
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Well, finally, adapt the 160 C-ERF to the 6 "lens.
It is an aluminum lightweight construction by Matthias Wirth.
I attached two small plastic washers to one of the retaining screws so that the ERF does not sit flat on the lens to avoid internal reflections.
Since the frame is a bit larger, I cut four spacers and fixed them in the frame by 90 °.
Then package tape had to be used again ...... laugh.
It works very well.
Now the Bino is complete and we are waiting .......for our lovely SUN.
It is an aluminum lightweight construction by Matthias Wirth.
I attached two small plastic washers to one of the retaining screws so that the ERF does not sit flat on the lens to avoid internal reflections.
Since the frame is a bit larger, I cut four spacers and fixed them in the frame by 90 °.
Then package tape had to be used again ...... laugh.
It works very well.
Now the Bino is complete and we are waiting .......for our lovely SUN.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Nice to hear things are developing with the project!
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- Solar-Cologne
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Hello Sun Friends.
The H-Alpha Bino is finally done.
The Bino won no beauty award .....
It works ......
but the look insight into all tested eyepieces is much too restless with the PST Blockingfilter and the Zeiss-Abbe Barlow.
It is not possible to observe with two eyes ..... too bad.
I am a little frustrated.
The H-Alpha Bino is finally done.
The Bino won no beauty award .....
It works ......
but the look insight into all tested eyepieces is much too restless with the PST Blockingfilter and the Zeiss-Abbe Barlow.
It is not possible to observe with two eyes ..... too bad.
I am a little frustrated.
Last edited by Solar-Cologne on Mon Jul 13, 2020 12:26 pm, edited 1 time in total.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
I tested another variant on Sunday.
I temporarily installed my Lunt BF 1200 Blockingfilter on the left side.
Wouw .... the view is much calmer and you can directly see through the eyepiece without Barlow.
Now I have to save to buy a second Lunt BF 1200 Blockingfilter.
Or does someone of you have another Idea or a Tip for me ?
Sunny Greetings
Achim
I temporarily installed my Lunt BF 1200 Blockingfilter on the left side.
Wouw .... the view is much calmer and you can directly see through the eyepiece without Barlow.
Now I have to save to buy a second Lunt BF 1200 Blockingfilter.
Or does someone of you have another Idea or a Tip for me ?
Sunny Greetings
Achim
- marktownley
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Looks good. Why won't it work with 2 eyes?
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
It looks really nice, Achim. I hope you can get it to work well. This should beat any binoviewer.
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
A fascinating project! Good luck in finishing it to your complete satisfaction.
I always use the B1200 for surface detail and the original PST BF5 for proms.
The difference is quite dramatic if I use the "wrong" BF for the wrong job.
The B1200 passes much less light than the PST BF.
Which demands lots of gain when minimum gain is desirable to avoid noise around proms.
On surface detail the contrast with the B1200 is far better than the PT BF.
There is quite a difference in power between my examples.
Which requires considerable refocusing.
I always use the B1200 for surface detail and the original PST BF5 for proms.
The difference is quite dramatic if I use the "wrong" BF for the wrong job.
The B1200 passes much less light than the PST BF.
Which demands lots of gain when minimum gain is desirable to avoid noise around proms.
On surface detail the contrast with the B1200 is far better than the PT BF.
There is quite a difference in power between my examples.
Which requires considerable refocusing.
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.