Search found 115 matches

by Solar-Cologne
Sun May 03, 2020 6:57 pm
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

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
by Solar-Cologne
Tue Apr 14, 2020 7:20 am
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

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/665486-hello-my-dream-lzos-triplet-apo-1521200-bino/ https://www.apm-telescopes.de/de/fernglaeser/gros...
by Solar-Cologne
Tue Apr 14, 2020 6:54 am
Forum: This is SolarChat !!
Topic: Sun Rising 08.04.2020
Replies: 6
Views: 2346

Re: Sun Rising 08.04.2020

I thank you all for these positive comments. :D It was wonderful to be able to consciously watch the entire sunrise with my own eyes. The first time I didn't take photos but sitting in a camping chair and watched the sunrise in peace ..... madness. I will do that more often now, it slows down in thi...
by Solar-Cologne
Mon Apr 13, 2020 2:58 pm
Forum: This is SolarChat !!
Topic: Sun Rising 08.04.2020
Replies: 6
Views: 2346

Sun Rising 08.04.2020

Here are a few impressions of the sunrise on April 8th, 2020

sunny Greetings
Achim
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by Solar-Cologne
Sun Apr 12, 2020 10:19 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: DSLR for H-Alpha ?
Replies: 7
Views: 2341

Re: DSLR for H-Alpha ?

Yes Mark

for just 32 shots the result is very amazing, especially as a 16 MP Tiff.

Next time I will take some 100 pictures.
by Solar-Cologne
Sat Apr 11, 2020 7:43 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: DSLR for H-Alpha ?
Replies: 7
Views: 2341

Re: DSLR for H-Alpha ?

Here i found them, from January 2013
AviStack-16MB-CS 2000Px.jpg
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by Solar-Cologne
Sat Apr 11, 2020 6:47 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: DSLR for H-Alpha ?
Replies: 7
Views: 2341

Re: DSLR for H-Alpha ?

Hi Mark,

I have to search my hard drive.

Once on the Lunt LS60Ha BF1200 with a Panasonic Lumix G3, astromodified, made " ONLY " 32 RAW images of the full disk and processed it with AviStack.
by Solar-Cologne
Sat Apr 11, 2020 8:52 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: DSLR for H-Alpha ?
Replies: 7
Views: 2341

DSLR for H-Alpha ?

Hello everybody.

Has anyone ever used a DSLR camera for H-Alpha photography ?

APS-C or Four-Thirds / Micro Four Thirds, with Mirror or Miirrorless, or a IR-modified one ?


sunny Greetings
Achim
by Solar-Cologne
Fri Apr 10, 2020 8:59 am
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

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.
by Solar-Cologne
Thu Apr 09, 2020 10:12 pm
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

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.

:movie
by Solar-Cologne
Tue Apr 07, 2020 4:39 am
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

Today it should be cloudy ... tomorrow, Wednesday again sunshine. :D
Cologne Solar Observatory-Sleeping.JPG
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by Solar-Cologne
Mon Apr 06, 2020 5:34 pm
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

Hi James,

Read my last Post about a Binoviewer, please.

"t sounds like your single-stack has better contrast than my double stack does."

It was not for nothing that Lunt / APM chose it for a test in Germany .... I better not say more......i am very happy with this Scope.

sunny Greetings
Achim
by Solar-Cologne
Mon Apr 06, 2020 5:29 pm
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

Hello Marty, Congratulations on 200mm H-Alpha .... wouw. And a warm welcome among the visual sun watchers. :D I like the complete disk with binoviewer in my LS60Ha too.....without Doublestack. Yes, a Binoviewer is a "must have". At best a widefiild binoviewer from Zeiss 28mm diameter from a microsco...
by Solar-Cologne
Mon Apr 06, 2020 12:02 pm
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

Re: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?

Hi Mark,

Me too ... because man / woman knows what you have. :D

The last adapter comes on Wednesday ..... waiting. :movie
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by Solar-Cologne
Mon Apr 06, 2020 6:44 am
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

Good morning James, My LS60Ha BF 1200 without pressure tuning is single stack. It was the test device from M.Ludes / APM here in Germany, for the test for the magazine "Stars and Space". Lambert Spix, author of Moonhopper, received it for testing Lunt / APM. Through small detours I was very lucky to...
by Solar-Cologne
Sun Apr 05, 2020 1:25 pm
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

Hello sun friends, Today also a mercilessly good seeing in the sun. Lunt 60Ha BF 1200 with BG38, Zeiss-Abbe-Barlow with KlickLock 2.25 x and Lunt Zoom to a whopping 7.2mm ...... 156x ..... Wouw! :D And with the BG38 prefilter !!! This is not a fairy tale, anyone who knows me knows that ..... profita...
by Solar-Cologne
Sun Apr 05, 2020 9:30 am
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

If someone has a question to implement a visual H-Alpha telescope with their existing equipment, I will be happy to help with advice and action.

Oliver Smie and Wolfgang Lille as well.

We often talk to each other on the phone.
by Solar-Cologne
Sun Apr 05, 2020 9:16 am
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

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
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by Solar-Cologne
Fri Apr 03, 2020 10:19 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Protuberance approach vs. Coronograph
Replies: 19
Views: 6205

Re: Protuberance approach vs. Coronograph

Hello Christian and Alexandra, Please read my Post from 05:08 am This article is from " Spectrum of science" https://www.spektrum.de/lexikon/physik/koronograph/8382 Alexandra, On your Baader approach is written in German .... Solar Prominence Viewer. It means a Protuberance approach. Best Regards Ac...
by Solar-Cologne
Fri Apr 03, 2020 7:40 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Protuberance approach vs. Coronograph
Replies: 19
Views: 6205

Re: Protuberance approach vs. Coronograph

Hello Alexandra,

Very very nice....But it is a Protuberance approach....not a Coronograph !

Achim
by Solar-Cologne
Fri Apr 03, 2020 5:44 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: My W. Lille Components
Replies: 10
Views: 3434

Re: My W. Lille Components

You can take beautiful H-Alpha photos with it .....like this. :D


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sunny Greetings :movie
Achim
by Solar-Cologne
Fri Apr 03, 2020 5:08 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Protuberance approach vs. Coronograph
Replies: 19
Views: 6205

Re: Protuberance approach vs. Coronograph

Coronograph, special telescope according to B. Lyot for observation and photography of the corona in the darkened sun. Since the surface brightness of the sun disk is 106 times greater than that of the corona, an artificial eclipse is carried out in the coronograph. For this purpose, a picture of th...
by Solar-Cologne
Fri Apr 03, 2020 4:17 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Protuberance approach vs. Coronograph
Replies: 19
Views: 6205

Protuberance approach vs. Coronograph

Hello Sun Enthusiasts, I've read here in a few of your posts more often: "I used a coronographer". But I see pictures of prominences. This is not correct. So you used a prominence approach. A coronographer shows an artificial sun corona ! https://en.wikipedia.org/wiki/Coronagraph https://translate.g...
by Solar-Cologne
Thu Apr 02, 2020 9:05 pm
Forum: Solar Scope Modifications
Topic: H-Alpha Double-Refractor 120 / 135 / 150mm Aperture ?
Replies: 35
Views: 13307

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 ). ...
by Solar-Cologne
Thu Apr 02, 2020 8:51 pm
Forum: This is SolarChat !!
Topic: Viually Observing the Sun......
Replies: 29
Views: 6744

Re: Viually Observing the Sun......

What I forgot, very important for a visually Scope: All H-Alpha components except an internal etalon are installed slightly tilted. The ERF filter and the block filter to banish the reflections from the optical axis, Today i tested one Refraktor for my Binoscope 120mm Aperture 6"f8 (H-Alpha f=10 ) w...