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

12” f 9 zen Maksutov

  • Please log in to reply
13 replies to this topic

#1 stuart keenor

stuart keenor

    Vostok 1

  • -----
  • topic starter
  • Posts: 199
  • Joined: 20 Feb 2011

Posted 23 September 2019 - 03:15 PM

Hi all

here is my new aquasition is a 12” f9 Maksutov from Italian telescope maker Romano zen, it’s the last one he had as a complete build, so couldn’t let it pass 

 At f9 it’s a compromise of a planetary scope as I also do a bit of deep sky , 

the scope is built very well indeed , very nice engineering , obviously it’s heavy !! At 30kg my friend paul c  is currently undertaking some minor works a new carbon fibre dew shield , and il have to work out a solution for a Handel ! Obviously again as soon as I test the scope il post it here 

thanks stuart

 

Attached Thumbnails

  • 7E280123-5FB0-4857-A00A-1D2885C70FA1.jpeg

  • Paul Hyndman, Starman27, elwaine and 8 others like this

#2 clusterbuster

clusterbuster

    Viking 1

  • *****
  • Posts: 885
  • Joined: 13 Mar 2016
  • Loc: Tampa Bay, Fl.

Posted 23 September 2019 - 03:28 PM

Very Cool !!!

 Mark



#3 stuart keenor

stuart keenor

    Vostok 1

  • -----
  • topic starter
  • Posts: 199
  • Joined: 20 Feb 2011

Posted 23 September 2019 - 03:31 PM

Some more photos

Attached Thumbnails

  • F6502558-BD03-4A6E-8E14-60A2833DC3FA.jpeg

Edited by stuart keenor, 23 September 2019 - 03:32 PM.

  • R Botero, Colin exraaf, Tyson M and 2 others like this

#4 fcathell

fcathell

    Apollo

  • *****
  • Posts: 1,289
  • Joined: 30 Jul 2017
  • Loc: Tucson, AZ

Posted 23 September 2019 - 04:03 PM

That meniscus must be one heavy piece of glass.  The cooling fan was a forgone conclusion! Very impressive. 

 

Frank



#5 vahe

vahe

    Surveyor 1

  • -----
  • Posts: 1,711
  • Joined: 27 Aug 2005
  • Loc: Houston, Texas

Posted 23 September 2019 - 05:17 PM

Very impressive, despite its large co I am willing to bet that it will produce decent planetary views.

Astro-Physics designed a custom made 12" f/8 Mak, it is installed in Chile for remote imaging, you can Google and see the pictures.

.

Vahe



#6 luxo II

luxo II

    Surveyor 1

  • -----
  • Posts: 1,831
  • Joined: 13 Jan 2017
  • Loc: Sydney, Australia

Posted 23 September 2019 - 05:26 PM

Beautiful example of fine Venetian artisan glass :)

Stuart 30kg is a big lift especially in the dark or late at night, and finding suitable handles wont be easy.

Berlebach have some with 25mm dia ash handles and black anodised metal parts to bolt onto the tube, should do fine or alternatively use a carbon fibre tube for the handle.

You could also consider

- add lifting eyes (rings) bolted firmly in place (smaller than handles) and then use a fabric strap through those to lift it,

- a length of seat-belt webbing sewn in a loop as a sling over one shoulder. That material is surprisingly easy to stitch on a domestic sewing machine.

Edited by luxo II, 23 September 2019 - 05:41 PM.

  • Tyson M likes this

#7 Tyson M

Tyson M

    Aurora

  • *****
  • Posts: 4,626
  • Joined: 22 Jan 2015
  • Loc: Canada

Posted 23 September 2019 - 07:28 PM

Beautiful scope!!! Cant wait to hear your reports.

#8 stuart keenor

stuart keenor

    Vostok 1

  • -----
  • topic starter
  • Posts: 199
  • Joined: 20 Feb 2011

Posted 25 September 2019 - 09:28 AM

Beautiful example of fine Venetian artisan glass :)

Stuart 30kg is a big lift especially in the dark or late at night, and finding suitable handles wont be easy.

Berlebach have some with 25mm dia ash handles and black anodised metal parts to bolt onto the tube, should do fine or alternatively use a carbon fibre tube for the handle.

You could also consider

- add lifting eyes (rings) bolted firmly in place (smaller than handles) and then use a fabric strap through those to lift it,

- a length of seat-belt webbing sewn in a loop as a sling over one shoulder. That material is surprisingly easy to stitch on a domestic sewing machine.

Yes the Handel is a must even thinking about strap Handel’s I’ve seen a few , saves taking the scope apart as well ! I had a 10” f15 intes a while ago , and I thought that was heavy also it’s out of collimation so il have to remember to colllimate rumak casses 🤔

#9 stuart keenor

stuart keenor

    Vostok 1

  • -----
  • topic starter
  • Posts: 199
  • Joined: 20 Feb 2011

Posted 24 October 2019 - 01:12 PM

Just order some scope totes for the big maksutov they look very well made

#10 islandastroboy

islandastroboy

    Lift Off

  • -----
  • Posts: 7
  • Joined: 11 May 2016

Posted 24 October 2019 - 03:38 PM

Congrats. I also have a 12" rumak, f12 built years ago. Contrast not the best since no internal baffles so I added flat black felt inside and on baffle for better contrast. Did yours come with I eternal baffles?

#11 stuart keenor

stuart keenor

    Vostok 1

  • -----
  • topic starter
  • Posts: 199
  • Joined: 20 Feb 2011

Posted 24 October 2019 - 04:19 PM

No internal baffles either but it’s flocked and blacked very well , I’m having a dew shield made from carbon fibre , I can’t wait to try it out! Zen does make fantastic Mak’s 



#12 TxStars

TxStars

    Surveyor 1

  • *****
  • Posts: 1,988
  • Joined: 01 Oct 2005
  • Loc: Lost In Space

Posted 24 November 2019 - 02:31 AM

Looks good..

Cant wait for the viewing report..



#13 junomike

junomike

    Hubble

  • *****
  • Moderators
  • Posts: 18,603
  • Joined: 07 Sep 2009
  • Loc: Ontario

Posted 24 November 2019 - 03:59 AM

What Mount is going to hold this beast?



#14 stuart keenor

stuart keenor

    Vostok 1

  • -----
  • topic starter
  • Posts: 199
  • Joined: 20 Feb 2011

Posted 24 November 2019 - 04:35 AM

Hi for the time being a Gemini 41 observatory mount from hungry but it’s probably at its limit ok for visual which is what I do now but in the new year will look for AP 1200 or 900 Regards stu


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