H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
- Solar-Cologne
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H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Hello,
I am a new ;Member here and my Name is Achim, from Cologne/Germany.
Sorry, but my english is not so good, i hope, i learn a little bit here in SolarChat
I am an Hobby-Astronomer since 6 Years started with an old TASCO Newtonian 114/900....
By the Time, i learn it to love our Sun.
I found the way in this Chat, because i want to have worldwide Connections with H-Alpha-Telescope Users.
Why ?
I am inquisitive in H-Alpha especially selfmade Telescopes.
At assemblies Scopes, i use two Coronado-PST, and a third PST-Etalon in an Aluminium case, mecanical Tuning, T-2 Adaption with an Baader TZ-4 Telezentrik.
By the Time i made a selfmade Scope with PST-Conversation and one with Lunt60-Conversation.
My last Step is an old Meade ED-178 with f=30, Doublestack. Its in work.
My Dream is an H-Alpha Double-Refractor with two C-ERF and min. 120mm Diameter or greater, without Frontetalons, at the end the Matsumoto Two-Mirror-System.
Is there anybody, using a Binocularscope like this ?
Or has somebody the same dream...?
PS:
My best H-Alpha Friends are Oliver Smie / http://beloptik.de/ and Wolfgang Lille / http://sonnenfernrohr.de/
I am lucky to know them both.
sunny Greetings
Achim
I am a new ;Member here and my Name is Achim, from Cologne/Germany.
Sorry, but my english is not so good, i hope, i learn a little bit here in SolarChat
I am an Hobby-Astronomer since 6 Years started with an old TASCO Newtonian 114/900....
By the Time, i learn it to love our Sun.
I found the way in this Chat, because i want to have worldwide Connections with H-Alpha-Telescope Users.
Why ?
I am inquisitive in H-Alpha especially selfmade Telescopes.
At assemblies Scopes, i use two Coronado-PST, and a third PST-Etalon in an Aluminium case, mecanical Tuning, T-2 Adaption with an Baader TZ-4 Telezentrik.
By the Time i made a selfmade Scope with PST-Conversation and one with Lunt60-Conversation.
My last Step is an old Meade ED-178 with f=30, Doublestack. Its in work.
My Dream is an H-Alpha Double-Refractor with two C-ERF and min. 120mm Diameter or greater, without Frontetalons, at the end the Matsumoto Two-Mirror-System.
Is there anybody, using a Binocularscope like this ?
Or has somebody the same dream...?
PS:
My best H-Alpha Friends are Oliver Smie / http://beloptik.de/ and Wolfgang Lille / http://sonnenfernrohr.de/
I am lucky to know them both.
sunny Greetings
Achim
Last edited by Solar-Cologne on Wed Apr 01, 2020 5:08 am, edited 1 time in total.
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Re: H-Alpha Double-Refractor ?
There will be someone here with knowledge Achim.I am still learning just basic modding.
Don't forget to post some pictures of your scopes.
Don't forget to post some pictures of your scopes.
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Hello Derek,
oh my, i have a lot of Sun-Scopes....
I dont wont to make a mistake here in Solarchat.
In which Board i can post my Pictures ?
sunny Greetings
Achim
oh my, i have a lot of Sun-Scopes....
I dont wont to make a mistake here in Solarchat.
In which Board i can post my Pictures ?
sunny Greetings
Achim
- marktownley
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Re: H-Alpha Double-Refractor ?
Hi Achim, welcome to the forum! You certainly have a lot of scope setups there. Never tried the binocular scopes like you talk about, but certainly sounds interesting. You can post your pictures in any of the boards here.
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Re: H-Alpha Double-Refractor ?
Hi Mark,
My Plan is to build a H-Alpha Binoscope with my self made 6" f8 FH-Binoscope with Matsumoto Mirror-System, with the build in Pentax 6x7 Helicoid-Focussers to adjust the Eye-Diameter.
I build it, because i like the big Fujinon 150 Binoculars.
My Scope is better than the Fujinon, because i can up to 300x ....
The Fujinon has a shorter focalratio and the wider Field....ok.
This Refractors are the older Bresser types from the Year 2000, not adjustable Lenses.
I have two Al Jaegers 6" f8 brand new Lenses.
now, i will make the Adapters for the Jaegers, they are 10 Times better than the Bresser, like an Semi-Apo....wouw.
I have two W.Lille C-ERF, one 135mm and the other 160mm and two PSTs,
I need only five Adapters and a second Zeiss-Abbe-Barlow to make a self-made 120mm H-Alpha-Binoscope.
sunny Greetings
Achim
My Plan is to build a H-Alpha Binoscope with my self made 6" f8 FH-Binoscope with Matsumoto Mirror-System, with the build in Pentax 6x7 Helicoid-Focussers to adjust the Eye-Diameter.
I build it, because i like the big Fujinon 150 Binoculars.
My Scope is better than the Fujinon, because i can up to 300x ....
The Fujinon has a shorter focalratio and the wider Field....ok.
This Refractors are the older Bresser types from the Year 2000, not adjustable Lenses.
I have two Al Jaegers 6" f8 brand new Lenses.
now, i will make the Adapters for the Jaegers, they are 10 Times better than the Bresser, like an Semi-Apo....wouw.
I have two W.Lille C-ERF, one 135mm and the other 160mm and two PSTs,
I need only five Adapters and a second Zeiss-Abbe-Barlow to make a self-made 120mm H-Alpha-Binoscope.
sunny Greetings
Achim
- marktownley
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Re: H-Alpha Double-Refractor ?
Wow, that is a cool setup!
http://brierleyhillsolar.blogspot.co.uk/
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Re: H-Alpha Double-Refractor ?
Welcome Achim...
That bino scope is rather unique...it will be interesting to follow this project as it develops.
Brian
That bino scope is rather unique...it will be interesting to follow this project as it develops.
Brian
Brian Colville
Maple Ridge Observatory
Cambray, ON Canada
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2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
Maple Ridge Observatory
Cambray, ON Canada
Photos: https://www.flickr.com/photos/185395281@N08/albums
10'x15 Roll-off Roof Observatory
Takahashi EM400 Mount carrying:
C14 + Lunt 80ED
Deep Sky Work - ASI294MM Pro+EFW 7x36/Canon 60D (Ha mod), ONAG
Planetary Work - SBIG CFW10, ASI462MM
2.2m Diameter Dome
iOptron CEM70G Mount carrying:
Orion EON 130ED, f7 OTA for Day & Night Use
Ha Setup: Lunt LS80PT/LS75FHa/B1200Ha + Home Brew Lunt Double Stack/B1800Ha on the Orion OTA + Daystar Quantum
WL, G-Band & CaK Setup: Lunt Wedge & Lunt B1800CaK, Baader K-Line and Altair 2nm G-Band filter
ASI1600MM, ASI432MM, ASI294MM Pro, ASI174MM, ASI462MM
- Valery
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Re: H-Alpha Double-Refractor ?
I am envious with the green background and ground everywhere there. This is the nicest environment for a good solar seeing which is the key in this hobby.
Valery.
Valery.
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Re: H-Alpha Double-Refractor ?
Hi Achim,
Impressive, but I'm not sure it would be the best approach.
1. OTA alignment seems like it might be a problem in order to get coincident visual fields.
2. For the twin scope you will need two etalons. Internal collimated etalons with the PST collimator-etalon-refocus lenses would be very complex with the Matsumoto mirror system and Pentax focusers. Using telecentric based filters (DayStar, Solar Spectrum) will give you a huge EFL, making OTA and internal optical alignment issues even more critical.
3. There are no commercially available front etalons over 100 mm in diameter. They are expensive, and you would need two. It would be better to use them double stacked on a single OTA with a binoviewer.
I certainly don't want to discourage you from trying, but in the end, you would probably be better off using a single 120 mm objective with a LS 60 or (better) LS 80 internal etalon system, with the appropriate DSII for double stacking if desired, and using a binoviewer.
Just my 2 cents worth...
Impressive, but I'm not sure it would be the best approach.
1. OTA alignment seems like it might be a problem in order to get coincident visual fields.
2. For the twin scope you will need two etalons. Internal collimated etalons with the PST collimator-etalon-refocus lenses would be very complex with the Matsumoto mirror system and Pentax focusers. Using telecentric based filters (DayStar, Solar Spectrum) will give you a huge EFL, making OTA and internal optical alignment issues even more critical.
3. There are no commercially available front etalons over 100 mm in diameter. They are expensive, and you would need two. It would be better to use them double stacked on a single OTA with a binoviewer.
I certainly don't want to discourage you from trying, but in the end, you would probably be better off using a single 120 mm objective with a LS 60 or (better) LS 80 internal etalon system, with the appropriate DSII for double stacking if desired, and using a binoviewer.
Just my 2 cents worth...
Diagonally parked in a parallel universe.
Curiosity is the father of knowledge; uncertainty is the mother of wisdom.
Dark-Sky Defenders
Goldendale Observatory
Curiosity is the father of knowledge; uncertainty is the mother of wisdom.
Dark-Sky Defenders
Goldendale Observatory
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Hello sun-friends,
Thanks for interesting this project.
Bob,
My thoughts to built this scope, I discussed with Oliver Smie.
Our first plan was to use the brand new Daystar-Quarks.....fine, a good idea.
We think, its a very good h-alpha-component, and its the right time when started in the market.
We speak with M.Ludes APM/Telescopes, if the next batch arrive here in Germany we want to test them all and i get two of the best one......
But whats happend.....they all are, to put it mildly, not so good..... we were disappointed
What we can do ?
Then it occurred to me, to use my two Coronado-PSTs.
All components are available, its cost me no money, only the five adapters.....
At next time i will test it, with two friends, with a single refractor, to put the etalon between the tube and the Matsumotos and the blockingfilter with barlow and eyepiece on the top
Oliver said, it will work.....maybe later, we will see...
---------------------------------------------------------------------------------
About the biggest Frontetalons:
Today, i ask Wolfgang Lille, he knows all about H-Alpha components.
Coronado has only built 5 pieces of a 140mm fronetalon in about the Year 2000 or earlier. It costs about 32.000,- DM, old German D-Mark, 16.000,- €.
But when they build it today, i think it costs 32.000,-€.
One User in Germany has two of them....not me....
sunny Greetings
Achim
Thanks for interesting this project.
Bob,
My thoughts to built this scope, I discussed with Oliver Smie.
Our first plan was to use the brand new Daystar-Quarks.....fine, a good idea.
We think, its a very good h-alpha-component, and its the right time when started in the market.
We speak with M.Ludes APM/Telescopes, if the next batch arrive here in Germany we want to test them all and i get two of the best one......
But whats happend.....they all are, to put it mildly, not so good..... we were disappointed
What we can do ?
Then it occurred to me, to use my two Coronado-PSTs.
All components are available, its cost me no money, only the five adapters.....
At next time i will test it, with two friends, with a single refractor, to put the etalon between the tube and the Matsumotos and the blockingfilter with barlow and eyepiece on the top
Oliver said, it will work.....maybe later, we will see...
---------------------------------------------------------------------------------
About the biggest Frontetalons:
Today, i ask Wolfgang Lille, he knows all about H-Alpha components.
Coronado has only built 5 pieces of a 140mm fronetalon in about the Year 2000 or earlier. It costs about 32.000,- DM, old German D-Mark, 16.000,- €.
But when they build it today, i think it costs 32.000,-€.
One User in Germany has two of them....not me....
sunny Greetings
Achim
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Hello Sunny Girls and Boys,
After a long period of Astro-abstinence........becaus i have more Hobbys......Highend HiFi.......and Motorcycles.......and my best Astrofriend Sascha, he was an H-Alpha Enthusiast too and my Parents died.
Now i will new started the 120mm H-Alpha Doublerefraktor Projekt, because I'm a purely visual H-Alpha observer.
I got the latest ones of Matsumoto EMS U-L with silver coated Mirrors....97,5 % Reflction and 148mm Lightpath.
http://ems-bino.com/ems-product-line-english/
The average reflectivity through the visible spectrum per one mirror is as high as 98.5 percent, and 97 percent of the incoming light is secured even after 2 times of reflections.
I have two very good original C-ERFs 135mm and 160mm
Two Skywatcher 6" f8 Refraktors, very good for H-Alpha.
Two Coronado PSTs
Two Matsumoto EMS U-L
Now, i need some Adapters to built this Binoscope......later.
Yesterday i watched the sun for the first time in this Year 2020 with my single 120mm 6" f10 PST.
sunny Greetings
Achim
After a long period of Astro-abstinence........becaus i have more Hobbys......Highend HiFi.......and Motorcycles.......and my best Astrofriend Sascha, he was an H-Alpha Enthusiast too and my Parents died.
Now i will new started the 120mm H-Alpha Doublerefraktor Projekt, because I'm a purely visual H-Alpha observer.
I got the latest ones of Matsumoto EMS U-L with silver coated Mirrors....97,5 % Reflction and 148mm Lightpath.
http://ems-bino.com/ems-product-line-english/
The average reflectivity through the visible spectrum per one mirror is as high as 98.5 percent, and 97 percent of the incoming light is secured even after 2 times of reflections.
I have two very good original C-ERFs 135mm and 160mm
Two Skywatcher 6" f8 Refraktors, very good for H-Alpha.
Two Coronado PSTs
Two Matsumoto EMS U-L
Now, i need some Adapters to built this Binoscope......later.
Yesterday i watched the sun for the first time in this Year 2020 with my single 120mm 6" f10 PST.
sunny Greetings
Achim
Last edited by Solar-Cologne on Thu Mar 26, 2020 10:25 pm, edited 3 times in total.
- marktownley
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Re: H-Alpha Double-Refractor ?
Looks good Achim. What happended to the 2 scopes from earlier in the post?
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- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Good morning Mark,
The 2 telescopes are still available.......I said it in the last post
The 2 telescopes are still available.......I said it in the last post
- robert
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Re: H-Alpha Double-Refractor ?
Let us know how you get on!
Robert
Robert
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- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
I have now also received a second Zeiss-Abbe Barlow at a ridiculously low price.
Sometimes i will use a 0,5 x Reducer 1-1/4".
W. Lille now produces the necessary adapters for me.
Waiting.......
sunny Greetings from Cologne
Achim
Sometimes i will use a 0,5 x Reducer 1-1/4".
W. Lille now produces the necessary adapters for me.
Waiting.......
sunny Greetings from Cologne
Achim
- Solar-Cologne
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- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
I stupid ...... enlightenment came to me this morning.
I have a one-off production of a PST etalon, built into a red anodized aluminum housing, which can be tilted from the outside
T-2 adaptation and mounted afocal original PST lens system, removable to use a real telecentric.
So screwed the afocal lens system back in and looked into my adapter box ......
Hooray, everything is there.
I first fix the PST block filter unit without PST-ERF with silicone or similar material to test.
Now I'm curious to see if I come into focus .......
sunny Greetings
Achim
I have a one-off production of a PST etalon, built into a red anodized aluminum housing, which can be tilted from the outside
T-2 adaptation and mounted afocal original PST lens system, removable to use a real telecentric.
So screwed the afocal lens system back in and looked into my adapter box ......
Hooray, everything is there.
I first fix the PST block filter unit without PST-ERF with silicone or similar material to test.
Now I'm curious to see if I come into focus .......
sunny Greetings
Achim
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Today I was able to test.
A friend helped me with that.
One of the two Skywatcher 6 "f8 refractors with 135 C-ERF and the adapted PST tiltable etalon saddled on the EQ-8.
Then sighted the sun.
My friend operated the focuser and the tiltable PST etalon.
I held the block filter unit (without PST ERF) on the 1-1 / 4 "nozzle with both hands.
I learned that Sahara dust is in the atmosphere, so I didn't see Venus in the daytime sky.
No H-Alpha in the sun, very dark sun through the dust .... but we both saw the Etalon-Donat, which tipped over the surface of the sun ..... so this the focus
..... i am Very Happy.
I will use the tiltable etalon on one refractor and the original etalon on the second.
Now I can take the measurements and take care of the adapters.
In the second photo you can see the focus when the block filter is attached.
sunny Greetings
Achim
A friend helped me with that.
One of the two Skywatcher 6 "f8 refractors with 135 C-ERF and the adapted PST tiltable etalon saddled on the EQ-8.
Then sighted the sun.
My friend operated the focuser and the tiltable PST etalon.
I held the block filter unit (without PST ERF) on the 1-1 / 4 "nozzle with both hands.
I learned that Sahara dust is in the atmosphere, so I didn't see Venus in the daytime sky.
No H-Alpha in the sun, very dark sun through the dust .... but we both saw the Etalon-Donat, which tipped over the surface of the sun ..... so this the focus
..... i am Very Happy.
I will use the tiltable etalon on one refractor and the original etalon on the second.
Now I can take the measurements and take care of the adapters.
In the second photo you can see the focus when the block filter is attached.
sunny Greetings
Achim
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
I had a next Idea.....
I have already found an inexpensive adapter solution.
The lower PST socket under the BF 5 has an M33 x 0.75 thread.
The 1-1 / 4 "eyepiece holder has 31.8mm.
I will have it turned 5mm deep to 33mm and glue the lower PST socket there.
Now I need only 3 adapters .... but I currently have no more money .... broke.
First of all to mount the PST etalon on a 2 "focuser, as AOK-Swiss also offers. It is too expensive for me.
An adapter with an M50x1 internal thread and 2 "internal dimension to insert the etalon into the Matsumotos.
At least a adapter with rear T-2 external thread and front 2 "external dimension to mount the PST tiltable etalon on a 2" focuser.
Then I can finally pamper my eyes.
I have already found an inexpensive adapter solution.
The lower PST socket under the BF 5 has an M33 x 0.75 thread.
The 1-1 / 4 "eyepiece holder has 31.8mm.
I will have it turned 5mm deep to 33mm and glue the lower PST socket there.
Now I need only 3 adapters .... but I currently have no more money .... broke.
First of all to mount the PST etalon on a 2 "focuser, as AOK-Swiss also offers. It is too expensive for me.
An adapter with an M50x1 internal thread and 2 "internal dimension to insert the etalon into the Matsumotos.
At least a adapter with rear T-2 external thread and front 2 "external dimension to mount the PST tiltable etalon on a 2" focuser.
Then I can finally pamper my eyes.
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Well, progress is slow ... unfortunately, too slow.
My workshop for turning work, where Mathias Wirth / APM M.Ludes has his parts made, is fully booked.
I persuaded him tomorrow to at least quickly expand the two 2 "/ 1-1 / 4" reducers for the lower PST block filter nozzle to 33mm.
And it will be cost 10,-€....cool
So I can glue the two sockets there.
I can be very persistent when I have a goal in mind.
I try to keep the total costs under 4000, - €.
With two Baader 1.25x glass path correctors I can use 135mm aperture !
Sunny Greetings
Achim
My workshop for turning work, where Mathias Wirth / APM M.Ludes has his parts made, is fully booked.
I persuaded him tomorrow to at least quickly expand the two 2 "/ 1-1 / 4" reducers for the lower PST block filter nozzle to 33mm.
And it will be cost 10,-€....cool
So I can glue the two sockets there.
I can be very persistent when I have a goal in mind.
I try to keep the total costs under 4000, - €.
With two Baader 1.25x glass path correctors I can use 135mm aperture !
Sunny Greetings
Achim
- Solar-Cologne
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Re: H-Alpha Double-Refractor ?
Yeah ... it's going ahead, faster than expected.
Peter Deuster, metal processing, Cologne, Widdersdorfer Str. 215
now makes me all 3 missing adapters by Friday noon, including PST etalon internal thread M 50x1 ...... insane, this adapter is nowhere to be bought.
Furthermore I have to widen my mauell fork assembly, at that time with Stefam Schimpf / Astromechanik in Volkach, for the 2 x 6 " Bino.
Originally there was a 2 x 120mm bino in there.
So I need the 2 horizontal aluminum plates new.
I went to Cologne, to "Wilms Metallhandel" .... Fa. sits next to Peter Deuster, and had the aluminum plates cut to me.
Then I saw 0.3mm red anodized aluminum material in a special offer in the sales room ... and had it cut to size for the two panels ...
Now glue on the red anodized sheets then drill the holes and the fork is ready.
See you on Friday.....
sunny greetings
Achim
The last photo shows the construction of the fork mount.
The picture is an advertising photo by Stefan Schimpf / Astromechanik in Volkach / Germany.
Peter Deuster, metal processing, Cologne, Widdersdorfer Str. 215
now makes me all 3 missing adapters by Friday noon, including PST etalon internal thread M 50x1 ...... insane, this adapter is nowhere to be bought.
Furthermore I have to widen my mauell fork assembly, at that time with Stefam Schimpf / Astromechanik in Volkach, for the 2 x 6 " Bino.
Originally there was a 2 x 120mm bino in there.
So I need the 2 horizontal aluminum plates new.
I went to Cologne, to "Wilms Metallhandel" .... Fa. sits next to Peter Deuster, and had the aluminum plates cut to me.
Then I saw 0.3mm red anodized aluminum material in a special offer in the sales room ... and had it cut to size for the two panels ...
Now glue on the red anodized sheets then drill the holes and the fork is ready.
See you on Friday.....
sunny greetings
Achim
The last photo shows the construction of the fork mount.
The picture is an advertising photo by Stefan Schimpf / Astromechanik in Volkach / Germany.
- marktownley
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Re: H-Alpha Double-Refractor ?
Lovely!
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
awesome looking refractors!!!
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
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Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
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- Solar-Cologne
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Today i tested one Refraktor for my Binoscope 120mm Aperture 6"f8 (H-Alpha f=10 ) with 135er C-ERF, PST-Etalon, Matsumoto EMS U-L, erecting Mirror System, PST BF 5mm a little bit tilted without the original ITF-Filter, Zeiss-Abbe Barlow with ClickLock 2,25 x and a Microskopocular WF 20x ( 12,5mm ).
It was a little cloudy in front of the sun, but still 216 x magnification ... wouw.
in the Bino 302 x !!!
You have to consider that when you look at real bino, our brain produces a 1.4 x larger image than monocular.
With Two Scopes....?.....400 x......500 x....we will see.
Do the test yourself with binoculars.
Alternately cover one of the lenses ....
It was a little cloudy in front of the sun, but still 216 x magnification ... wouw.
in the Bino 302 x !!!
You have to consider that when you look at real bino, our brain produces a 1.4 x larger image than monocular.
With Two Scopes....?.....400 x......500 x....we will see.
Do the test yourself with binoculars.
Alternately cover one of the lenses ....
- Solar-Cologne
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Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
I am currently widening the hand-guided fork mount by Stefan Schimpf / Astromechanik.
It was previously designed for a 2 x 120 FH bino.
My 2nd PST cannot be disassembled at the moment .......
The adhesive, similar to Locktite, sticks enormously.
sunny greetings
Achim
It was previously designed for a 2 x 120 FH bino.
My 2nd PST cannot be disassembled at the moment .......
The adhesive, similar to Locktite, sticks enormously.
sunny greetings
Achim
- 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.
- Solar-Cologne
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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.
- Solar-Cologne
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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 "
- Solar-Cologne
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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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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.
- Solar-Cologne
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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.
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
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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.