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

Why not a Intes/Intes Micro Forum

  • This topic is locked This topic is locked
42 replies to this topic

#26 Mike E.

Mike E.

    Mercury-Atlas

  • -----
  • Posts: 2533
  • Joined: 26 Jan 2010
  • Loc: Moonstone Observatory

Posted 09 April 2013 - 03:13 AM

I have the best of both worlds: my Q7 was VERY secondhand and horribly dirty inside, so while I was trying to find someone in the UK to clean it, I acquired a 7" F10 Russian MCT, tapped a suitable hole into its mounting plate and fitted it to the Q7's forkmount -- lovely!


That sounds interesting, did you raise the mounting plate on a block to center the OTA with the setting circles ?
Can you post photos please.
 

#27 ColoHank

ColoHank

    Mercury-Atlas

  • *****
  • Posts: 2503
  • Joined: 07 Jun 2007
  • Loc: western Colorado

Posted 09 April 2013 - 06:28 AM

That sounds interesting, did you raise the mounting plate on a block to center the OTA with the setting circles ?



That wouldn't be necessary. What's important is that the optical axis should be perpendicular to the mount's declination axis. If that is achieved, and if the optical tube can swing freely between the yoke arms without the eyepiece banging into the base of the mount, the setup should be functional and accurate.

What's problematic is having a spare or empty Q7 mount sitting around unoccupied. I doubt there are many such beasts floating around out there. They're rare to begin with, and very pricey.
 

#28 planetmalc

planetmalc

    Ranger 4

  • -----
  • Posts: 344
  • Joined: 21 Oct 2009

Posted 09 April 2013 - 11:41 AM

I have the best of both worlds: my Q7 was VERY secondhand and horribly dirty inside, so while I was trying to find someone in the UK to clean it, I acquired a 7" F10 Russian MCT, tapped a suitable hole into its mounting plate and fitted it to the Q7's forkmount -- lovely!


That sounds interesting, did you raise the mounting plate on a block to center the OTA with the setting circles ?
Can you post photos please.


Sadly, I can't post photo's and, no, I didn't bother with any mounting refinement because my unit has the American DC motor and I live in the AC-system UK, so I only ever use the manual slow-motions and relatively low powers. Clearance is fine with this Intes OTA, and it's a breath of fresh air to be able to use the full range of big 2" eyepieces that are available to us nowadays. It's certainly something for Q7 owners to consider if they can get hold of a cheap decent F10 OTA to use in occasional low-power sessions.
 

#29 Mike E.

Mike E.

    Mercury-Atlas

  • -----
  • Posts: 2533
  • Joined: 26 Jan 2010
  • Loc: Moonstone Observatory

Posted 09 April 2013 - 04:44 PM

In another thread here I posted a UK source for 230v UK to 110v US step down transformers. Here it is again...

www.newmarket-transformers.co.uk

For £52 pounds (roughly $75) you could have your Q7 fork mount up and running, a cheap investment for such a fine piece of equipment.

I live part time in the UK. So far, you are the only other person I've heard of who besides myself, has a Questar 7 here in the UK; it would be interesting to compare the two sometime.

Could you tell us what model your Russian 7" Mak is ?

At the moment, my friend Matthew is selling his Intes 715 Mak on the SGL classifieds; would be interesting to try it in our fork mount before it sells. Just for fun after reading your post, I popped our Intes-Micro Alter M500 Mak into our Q7 fork mount today; I think everyone will agree, its a bit overkill for a 5" scope, LoL. :lol:

Hank is right, an unoccupied Questar 7 mount is rare, we should make every effort to use them.

Attached Files


 

#30 planetmalc

planetmalc

    Ranger 4

  • -----
  • Posts: 344
  • Joined: 21 Oct 2009

Posted 12 April 2013 - 11:52 AM

In another thread here I posted a UK source for 230v UK to 110v US step down transformers. Here it is again...

www.newmarket-transformers.co.uk

For £52 pounds (roughly $75) you could have your Q7 fork mount up and running, a cheap investment for such a fine piece of equipment.

I live part time in the UK. So far, you are the only other person I've heard of who besides myself, has a Questar 7 here in the UK; it would be interesting to compare the two sometime.

Could you tell us what model your Russian 7" Mak is ?

At the moment, my friend Matthew is selling his Intes 715 Mak on the SGL classifieds; would be interesting to try it in our fork mount before it sells. Just for fun after reading your post, I popped our Intes-Micro Alter M500 Mak into our Q7 fork mount today; I think everyone will agree, its a bit overkill for a 5" scope, LoL. :lol:

Hank is right, an unoccupied Questar 7 mount is rare, we should make every effort to use them.


Thanks for the link, Mike, I'll have a look through it.

My MCT is the Intes-72MK (third one down on this link):-

http://astronom-bg.c...ro catalogue...

Some clarification is required regarding my claim about its clearance in the Q7 mount: it's fine for ME 'cos I live at latitude 52.4N, but it wouldn't be OK for those living in the tropics.

My Q7 OTA is a purple-tubed specimen without any star map on the barrel. Paperwork that was included with it included a price list which has some manual underlining on it (presumably done by a previous owner) suggesting that it's got a Pyrex mirror and BB coatings. Serial number is (I think) P-7-699-DP-3B (not very easy to read).
 

#31 Mike E.

Mike E.

    Mercury-Atlas

  • -----
  • Posts: 2533
  • Joined: 26 Jan 2010
  • Loc: Moonstone Observatory

Posted 12 April 2013 - 02:27 PM

Mr. Bakker, who frequently posts on this forum, also had a Q7 with the gorgeous mystic purple color. His photos prompted me to order ours without the star charts, which I'm glad I did. Even though the purple anodizing is no longer available, the blue finish we received looks classic also.
Going by our 5" Mak, the Intes scopes seem to have robust housings, the optical tube is 172mm in diameter. Its 45mm wider than the primary mirror. If this follows through with other scopes, I can understand your fork clearance issue as our fork saddle is 210mm wide.
 

#32 ralphfoss

ralphfoss

    Explorer 1

  • -----
  • Posts: 51
  • Joined: 25 Mar 2005
  • Loc: Bangor, Maine

Posted 13 April 2013 - 08:11 AM

Your Questar serial number does have a Pyrex mirror as the 'P' The Q7 serial number starts with the type of mirror used, in your case Pyrex. The second digit seems to always be the number '7' meaning it is a Questar 7. This is then followed by the serial number, in your case 699. Most like this Q7 was made sometime between 1988 and 1990 most likely 1988 of 1989. The DP means of course it is Duplex and the 3B as you typed it is most likely BB for Broad Band coatings. I believe to have the star chart and or moon map was an extra expense at the time.

Ralph Foss
 

#33 planetmalc

planetmalc

    Ranger 4

  • -----
  • Posts: 344
  • Joined: 21 Oct 2009

Posted 13 April 2013 - 11:43 AM

Your Questar serial number does have a Pyrex mirror as the 'P' The Q7 serial number starts with the type of mirror used, in your case Pyrex. The second digit seems to always be the number '7' meaning it is a Questar 7. This is then followed by the serial number, in your case 699. Most like this Q7 was made sometime between 1988 and 1990 most likely 1988 of 1989. The DP means of course it is Duplex and the 3B as you typed it is most likely BB for Broad Band coatings. I believe to have the star chart and or moon map was an extra expense at the time.

Ralph Foss


Thanks for that, Ralph.
 

#34 planetmalc

planetmalc

    Ranger 4

  • -----
  • Posts: 344
  • Joined: 21 Oct 2009

Posted 13 April 2013 - 11:55 AM

Mr. Bakker, who frequently posts on this forum, also had a Q7 with the gorgeous mystic purple color. His photos prompted me to order ours without the star charts, which I'm glad I did. Even though the purple anodizing is no longer available, the blue finish we received looks classic also.
Going by our 5" Mak, the Intes scopes seem to have robust housings, the optical tube is 172mm in diameter. Its 45mm wider than the primary mirror. If this follows through with other scopes, I can understand your fork clearance issue as our fork saddle is 210mm wide.


When talking about 'clearance', we may be talking about different things here. The diameter clearance isn't a problem - the barrel of the OTA is only around 205mm - it's the rear-end clearance that's the problem 'cos the eyepiece/prism combo on the back end will foul the base of the forkmount when the OTA is tipped to point towards the zenith. This isn't a problem for equatorial mounting at high latitudes like mine as the OTA is always hanging outboard of the fork's base, but it WOULD be a problem at low latitudes, where the mount becomes more like an altazimuth. As you've realised, these Russian MCT's are beautifully made and performance is exquisite.
 

#35 Mike E.

Mike E.

    Mercury-Atlas

  • -----
  • Posts: 2533
  • Joined: 26 Jan 2010
  • Loc: Moonstone Observatory

Posted 14 April 2013 - 05:07 AM

Yes, I was thinking fork saddle clearance.
 

#36 archag

archag

    Lift Off

  • -----
  • Posts: 16
  • Joined: 01 Apr 2015
  • Loc: Moscow, Russia

Posted 03 April 2015 - 01:40 PM

Hello to everyone!

 

Just been passing by and seen this topic. I am Russian, from Moscow. I know the current state of the telescopes production. If you have any questions, feel free to ask.

 

Dmitry


 

#37 Richard Whalen

Richard Whalen

    Ranger 4

  • *****
  • Posts: 326
  • Joined: 24 Sep 2007
  • Loc: Florida

Posted 05 April 2015 - 08:51 AM

I remember back in the late 1990's when APM was selling these scopes. I ordered a custom 8", waited a year, when it was delievered had wrong dovetail, and would not come to focus. Don't remember what other issues it had, but it was built like a tank. Markus gave me my money back no problem, and I turned around and ordered a custom 8" TEC. Been happy with it since I got it a year later. I guess they never tested the Russian scope before it left the factory or Germany or it got damaged on it's trip to Astrofest. It did have an impressive optical report with it.

 

The TEC has kept dead on collimation for 14 years now, has traveled over 20k miles in a 4x4 or pickup.

 

Richard


 

#38 Phil Barker

Phil Barker

    Sputnik

  • -----
  • Posts: 38
  • Joined: 17 Aug 2009

Posted 07 April 2015 - 04:15 PM

I agree with the idea of a maksutov forum

 

I've used and owned a number of maks

etx90 excellent scope very dim images

mk67 delux  superb optics sold to buy a 715 delux which was even better

Questar 7 a friend larry owns great scope optics very good but  dim for the aperture. 

used a 7 inch f-6 im mak very little between that and the 715

and now after all these years a 10 inch mak I've fallen in love with im 1008 delux

 

Also owned a number of scts all ok but the maks have that edge optically especially the rumak types.

 

I'd love to be able to share and discuss all things maksutov.  I am an atmer and have consider making a mak cass once made a dk 8 inch which I had for a coupe of years but never got working  right.

 

 

 

.


 

#39 cbwerner

cbwerner

    Surveyor 1

  • -----
  • Moderators
  • Posts: 1867
  • Joined: 27 Aug 2005
  • Loc: Maidens, VA

Posted 08 April 2015 - 03:54 PM

I'd love to be able to share and discuss all things maksutov.  I am an atmer and have consider making a mak cass once made a dk 8 inch which I had for a coupe of years but never got working  right.

The Cats and Casses forum often has dedicated Mak threads and the ATM forum frequently has threads on more specialized designs. You should check those out if you haven't already. :)


 

#40 munirocks

munirocks

    Vostok 1

  • -----
  • Posts: 129
  • Joined: 21 Oct 2013
  • Loc: Bourne End, UK

Posted 04 May 2015 - 01:57 PM

Hello to everyone!

Just been passing by and seen this topic. I am Russian, from Moscow. I know the current state of the telescopes production. If you have any questions, feel free to ask.

Dmitry


 

#41 munirocks

munirocks

    Vostok 1

  • -----
  • Posts: 129
  • Joined: 21 Oct 2013
  • Loc: Bourne End, UK

Posted 04 May 2015 - 02:07 PM

Здравствуйте Дмитрий! My information indicates that these scopes are now made to order, at least when ordered from a dealer in Germany. Is there any place in Moscow or St. Petersburg where they have ready-made stock on display for immediate sale?
 

#42 munirocks

munirocks

    Vostok 1

  • -----
  • Posts: 129
  • Joined: 21 Oct 2013
  • Loc: Bourne End, UK

Posted 04 May 2015 - 02:27 PM

In another thread here I posted a UK source for 230v UK to 110v US step down transformers. Here it is again...

www.newmarket-transformers.co.uk

For £52 pounds (roughly $75) you could have your Q7 fork mount up and running, a cheap investment for such a fine piece of equipment.

I live part time in the UK. So far, you are the only other person I've heard of who besides myself, has a Questar 7 here in the UK; it would be interesting to compare the two sometime.

Could you tell us what model your Russian 7" Mak is ?

At the moment, my friend Matthew is selling his Intes 715 Mak on the SGL classifieds; would be interesting to try it in our fork mount before it sells. Just for fun after reading your post, I popped our Intes-Micro Alter M500 Mak into our Q7 fork mount today; I think everyone will agree, its a bit overkill for a 5" scope, LoL. :lol:

Hank is right, an unoccupied Questar 7 mount is rare, we should make every effort to use them.


The mains frequecy is different in the UK, too, at 50Hz, compared to 60Hz in the US. Does this mean that if you use a step-down transformer to correct for the voltage, the motors will still only run at 5/6 of the sidereal rate?
 

#43 cbwerner

cbwerner

    Surveyor 1

  • -----
  • Moderators
  • Posts: 1867
  • Joined: 27 Aug 2005
  • Loc: Maidens, VA

Posted 05 May 2015 - 09:46 AM

Folks,

 

This thread is now well off topic for this forum so I am locking it. If you have something further to discuss on Russian Maks please take it to the Cats and Casses forum.  Thanks.


 


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 Reviews


Imaging/Sketching Contest






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics