Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Intes 12" M1212 Deluxe experiences?

  • Please log in to reply
193 replies to this topic

#176 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 25 February 2024 - 01:57 PM

Hello deSitter, I don't know where your big concerns come from... I know what precision is.  In my job as a master mechanical engineer, I produce much more complex structures, sometimes with an accuracy of 1000ths of a millimeter.  I bought an older and certainly very good telescope here, which I am gradually getting to know better about its structure and function.  I want to be able to enjoy it for many years to come and after much consideration, maintenance was overdue here too.  The optical elements appear to have been cleaned very unprofessionally before.  This isn't the first time I've done this.  There were clear streaks and marks.  The fan was also always operated without a filter; I'm currently building a case for this.  The rail was loose and that would have been a catastrophe, screws had already come loose.  I also spoke to Markus Ludes about dismantling and cleaning.  He didn't advise me against it at all; on the contrary, he supported me.  Even if it is a telescope, it is not a miracle but a mechanical construct that works according to physical laws.  You view this far too critically.  I'll report back when everything is ready.  Best regards, Steve


  • davidmcgo, nykaver, R Botero and 3 others like this

#177 luxo II

luxo II

    Cosmos

  • *****
  • Posts: 9,354
  • Joined: 13 Jan 2017
  • Loc: Sydney, Australia

Posted 25 February 2024 - 06:57 PM

Hi Stefan, we appreciate where you're coming from.

 

Sadly there are examples where some with the best of intentions but lacking knowledge, skill or tools have made a mess of russian maks, eg leaving crucial parts out when reassembling one, reassembling incorrectly, or worse, scratching the coatings or chipping/dropping the glass...

 

Aside from clam-chips I've seen one where it appeared someone had used steel wool to "clean" the corrector.


Edited by luxo II, 25 February 2024 - 08:19 PM.

  • markmanner likes this

#178 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 26 February 2024 - 12:29 AM

Hello, of course I also appreciate your concern. I've seen a lot of it and would never do it if I had no idea. As I said, when everything is finished and I find time, I'll be happy to post it here. I photographed and documented every step. Have a nice start to the week, Steve



#179 R Botero

R Botero

    Fly Me to the Moon

  • -----
  • Posts: 5,285
  • Joined: 02 Jan 2009
  • Loc: Kent, England

Posted 26 February 2024 - 06:23 AM

I think you are doing great Stefan! Love the clean optics! waytogo.gif As I posted earlier, nothing should be moving around inside or outside the OTA. If the build tolerances are there, you should be able to put the scope together without issues and collimating it should not be too troublesome. When I took apart my TEC, I was collimated the same night I finished putting it together. As you work in precision machinery, hopefully you have some good measurement tools at home to use here. 
Also love the gold foil insulation. Very space shuttle! cool.gif Looking forward to this scope being back together and your reporting on how it performs. 
 

Roberto


  • Traveler_82 and markmanner like this

#180 thebonz

thebonz

    Explorer 1

  • -----
  • Posts: 63
  • Joined: 13 Oct 2009

Posted 04 March 2024 - 04:04 AM

Hi Stefan. Have you reassembled the big intes yet. And if so any observing reports with this rare piece of an optical masterpiece.

Cheers John



#181 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 04 March 2024 - 05:22 AM

Hi John, yes, I finished yesterday.  I have a lot of work at the moment, I'll try to write the report this week.  I took a lot of photos, but unfortunately I can only put very small amounts of data here?  It is now christened - the "golden eye telescope" Best regards, Stefan

Attached Thumbnails

  • Screenshot_20240304_111751_com.android.gallery3d_edit_927595235726686.jpg

  • R Botero, towi, Kitfox and 2 others like this

#182 luxo II

luxo II

    Cosmos

  • *****
  • Posts: 9,354
  • Joined: 13 Jan 2017
  • Loc: Sydney, Australia

Posted 05 March 2024 - 02:15 AM

Wow very neat, Stefan !



#183 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 05 March 2024 - 03:02 AM

What I can show you is my “invention” for adjusting the main mirror

Attached Thumbnails

  • Screenshot_20240305_085832_com.android.gallery3d_edit_955514824327114.jpg


#184 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 05 March 2024 - 03:03 AM

Attached Thumbnails

  • Screenshot_20240305_085852_com.android.gallery3d_edit_955528982881278.jpg

  • R Botero likes this

#185 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 05 March 2024 - 03:04 AM

Attached Thumbnails

  • Screenshot_20240305_085918_com.android.gallery3d_edit_955539191047943.jpg

  • R Botero likes this

#186 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 05 March 2024 - 03:04 AM

Attached Thumbnails

  • Screenshot_20240305_085932_com.android.gallery3d_edit_955547239009921.jpg

  • R Botero likes this

#187 NevelP

NevelP

    Sputnik

  • -----
  • Posts: 48
  • Joined: 15 Nov 2021
  • Loc: Somewhere in Europe

Posted 05 March 2024 - 04:06 AM

So how are the observations currently?

#188 starman876

starman876

    Nihon Seiko

  • *****
  • Vendors
  • Posts: 25,500
  • Joined: 28 Apr 2008
  • Loc: VA

Posted 05 March 2024 - 09:54 AM

please tell me more about your invention.


  • mdowns likes this

#189 luxo II

luxo II

    Cosmos

  • *****
  • Posts: 9,354
  • Joined: 13 Jan 2017
  • Loc: Sydney, Australia

Posted 05 March 2024 - 10:56 PM

Ok so you have a camera at the rear end looking through the central baffle at the mask, and you’re adjusting the tilt of the back to centre the pinhole in the field of the camera, correct ?

 

That will align the central baffle, camera and eyepiece on the pinhole but it suggests you’re assuming the primary mirror was made so that the optical axis coincides precisely with its mechanical (physical) centre.


Edited by luxo II, 05 March 2024 - 11:08 PM.


#190 thebonz

thebonz

    Explorer 1

  • -----
  • Posts: 63
  • Joined: 13 Oct 2009

Posted 17 March 2024 - 04:52 AM

H Stefan. Your invention to collimate the golden eye is a ney and  innovative way to solve the alignment of the optical path and I am sure that it will get you pretty close to the mirrors being centered as these scopes are very well engineered. As with most bench collimation a real world test is the pinnacle and ultimate alignment.  If out a bit a simple star test will easily expose any error and adjustment under the stars should finish the collimation of both mirrors to perfection..

Cheers John



#191 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 21 March 2024 - 04:09 PM

Hello everyone,

the “Golden Eye” is finally ready for use.
I would like to apologize first but
Unfortunately, I have very little time at the moment, so the promised report on the entire renovation is still not finished.
Or would this be almost finished but I can only attach 500kb of images here and I have no idea how to insert the large number of images into the report?

In the meantime I've had two wonderful nights of observing galaxies, small PN's and star clusters with it, as well as once again being lucky enough to see a really outstanding Jupiter with it.

Unfortunately, the mount tilted a bit when I was balancing it, so I'll have to put it back in at some point. But it is important that the optics now fit.

Yesterday I observed the moon with it, mind you, in haze and relatively moderate seeing.
Still, I was able to do a truly (I can't put it any other way) brutal moonwalk at 480x!

I'm incredibly happy with the Intes - I've always wanted something like that!!

Despite the less than ideal conditions, I still hung up the camera for three snapshots.

I'm already incredibly excited for the next planetary season with Mars, Jupi and Saturn - to be honest, I can hardly wait to observe it.

Yes - it takes about 3 hours for it to cool down, but then you'll be even more rewarded!

Attached are three quick snapshots, so you can definitely imagine the visual impression!

 

Best regards,
Stefan.

Attached Thumbnails

  • Edge of the moon Intes12 Deluxe.jpg

  • davidmcgo, tim53, R Botero and 5 others like this

#192 StefanBemmerl

StefanBemmerl

    Explorer 1

  • -----
  • topic starter
  • Posts: 59
  • Joined: 18 Jan 2024

Posted 21 March 2024 - 04:10 PM

.

Attached Thumbnails

  • Copernicus Intes12 Deluxe.jpg

  • davidmcgo, tim53, clamchip and 2 others like this

#193 CHASLX200

CHASLX200

    ISS

  • *****
  • Posts: 37,386
  • Joined: 29 Sep 2007
  • Loc: Tampa area Florida

Posted 21 March 2024 - 06:33 PM

Now that is the power i like using in my scopes.


  • clamchip likes this

#194 Kitfox

Kitfox

    Vanguard

  • *****
  • Posts: 2,161
  • Joined: 25 May 2022
  • Loc: North Carolina, USA

Posted 23 March 2024 - 12:04 PM

Stefan, all the way back to my original post in this thread, I am glad you got it before I did!  You have put in the work to allow this masterpiece to show its potential.  Certainly way more than I could have done!

 

Congratulations, it looks like you now have a scope that will only be limited by the atmosphere. 




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics