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AlienRatDog
Carpal Tunnel


Reged: 07/15/05
Posts: 1682
Loc: Ann Arbor
Heavy Duty Altaz with Slow Motion controls
      #2935165 - 02/18/09 01:50 PM

What Altaz mounts out there that are heavy duty (can handle something like an EON120 or Explore Scientific 127mm triplet) that has slow motion controls?

--------------------
Abe -- the poor PhD student (candidate now!)
-----------------------------------------
12" LX200GPS-SMT w/UHTC
Celestron CPC800XLT w/ Feathertouch 2" Crayford
Orion ED100 w/ Moonlight 2.5" Crayford, Orion ST80
Celestron AS-GT GEM, Vixen Star Guy Pro, FM18 fluid head
Nagler 31mm, 17mm, 13mm, 12mm, 9mm, 2.5x Powermate
Oberwerk 15x70 binoculars
Understanding wife
One beautiful daughter, Emma-Rose (born 7-29-2009)
Twin boys (cats), half Persian/half Alley Cat but all Vermin!


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Erik D
Post Laureate


Reged: 04/28/03
Posts: 4066
Loc: Central New Jersey, USA
Re: Heavy Duty Altaz with Slow Motion controls new [Re: AlienRatDog]
      #2935212 - 02/18/09 02:08 PM

How much $$$$ you got?

http://www.binoscope.com/bigbino.htm#altazmt

Strong enough to handle your 12 inch SCT or a 6 inch refractor.

ERik D


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Doug D.
Carpal Tunnel


Reged: 08/23/05
Posts: 2496
Loc: Virginia
Re: Heavy Duty Altaz with Slow Motion controls new [Re: AlienRatDog]
      #2935223 - 02/18/09 02:11 PM

I think the Tak Teegul with Lapides modification would handle the 120 but I'm not familiar enough with your other scope to have an opinion. If you do some searching here on CN and elsewhere you'll find a lot of info - it is a pretty popular mount. I use one with my 105EDF and it has no problems with it at all and it is clear to me it can handle a good deal more.

There are also additional mods possible that help with capacity and, of course, there is no substitute for a solid set of legs.

--------------------

Hooville



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Luigi
Postmaster


Reged: 07/03/07
Posts: 5317
Loc: MA
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Doug D.]
      #2935308 - 02/18/09 02:48 PM

Tegul or AtroTech voyager are both marginal IMO for a 120ED. I'm using an Orion AZ for the Eon 120 and IM715. I can mount both on it at the same time and it's very stable. No slo mo tho.

--------------------
17.5" f/5 Dob. IM-715 MCT. 120ED. Lunt 60mm Ha.
Zeiss, Leica, Fujinon, Nikon, Pentax, Bushnell bins


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Fred1
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Reged: 09/19/07
Posts: 1819
Loc: Somewhere in the Orion Spur
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Luigi]
      #2935810 - 02/18/09 06:23 PM

Check out the Half Hitch, there's a sale on:
http://www.halfhitchtelescope.com/

--------------------
Fred
StarStructure LE Series 18" f/4.3 (Zambuto & Argo-Servo)
Celestron 8" SCT w/Starlight Feathertouch Microfocuser;
Explore Scientific David H. Levy f/4.8 Comet Hunter
Stellarvue SV80ST f6 Triplet APO
Tele Vue & EarthWin binoviewers
Enough Eyepieces and Accessories to put my Scopes to Good Use
Meade LX80, CG5-ASGT, Astro-Tech Voyager mounts


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Erik D
Post Laureate


Reged: 04/28/03
Posts: 4066
Loc: Central New Jersey, USA
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Fred1]
      #2936053 - 02/18/09 08:27 PM

There are heavy duty Alt Az mounts that can handle up to 50 lbs on each side. See the discussion and links in this thread for more info: Giro DX and XXL

Slo mo control is not needed if the OTA is perfectly balanced. However, If you change back and forth often between a heavy binoviewer and light wt EP it may not be very convenient for you. You will need to rebalance. I use a Losmandy Saddle and 13.5 inch male dovetail plate with my 6 inch F8 refractor. It's pretty easy for me to achieve perfect balance. 300X is no problem.

ERik D


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John Huntley
professor emeritus


Reged: 07/16/06
Posts: 547
Loc: South West England
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Erik D]
      #2936200 - 02/18/09 09:41 PM

How about a solid EQ mount (eg: EQ5 or Vixen SP) used in Alt-Az mode ?.

John
SW England

--------------------
Orion Optics (UK) 12" F/5.3 SPX Dobsonian
Skywatcher ED120 Pro 4.7" F/7.5 ED Refractor
Vixen ED102SS 4" F/6.5 ED Refractor
Ambermille Aztech Heavy Duty Alt-azimuth mount
Skywatcher AZ-4 Alt-azimuth mount
Naglers, Ethe and Pentax XW's




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Jerry Hyman
sage


Reged: 03/29/07
Posts: 465
Loc: Mesa, Arizona
Re: Heavy Duty Altaz with Slow Motion controls new [Re: John Huntley]
      #2936228 - 02/18/09 10:03 PM

I haven't seen any recent posts on there delivery, but Astro-tech is suppose to be coming out with a heavy duty version of their Voyager.

~jerry

--------------------
Sky-Watcher 10" 1200mm dob
8" Celestron EdgeHD
10" f5 quartz custom dob
10" Discovery dob
AP 15x70
CG-5 mount


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Erik D
Post Laureate


Reged: 04/28/03
Posts: 4066
Loc: Central New Jersey, USA
Re: Heavy Duty Altaz with Slow Motion controls new [Re: John Huntley]
      #2936241 - 02/18/09 10:12 PM

Quote:

How about a solid EQ mount (eg: EQ5 or Vixen SP) used in Alt-Az mode ?.

John
SW England




I like that idea a lot.

IIRC the old Astro Physics 706 head and the Vixen DX can be used on the side as an Alt az head with slo mo. The problem is no manufacturer or dealer seem list which EQ head can be used that way anymore. I am not sure if they want to discourage using a EQ head that way or just don't feel there is a demand.

I went to visit Company 7 in Md, USA many years ago. I think Marty was mounting an 7 in F9 AP refractor on a 706 mount in Alt Az mode.

ERik D


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Per Stymne
super member


Reged: 02/05/05
Posts: 132
Loc: Söderbärke, Sweden
Re: Heavy Duty Altaz with Slow Motion controls new [Re: AlienRatDog]
      #2936583 - 02/19/09 03:02 AM

Abe,

The Track The Stars is a hefty alt-az mount with with goto controls, but possibly too pricey for a "poor PhD student".

I saw this mount at a star party half a year ago. It was a truly impressive piece of equipment, with a price tag which fully matched the engineering.

http://asp.trackthestars.com/

--------------------
/Per

60°05’N 15°35’E
Intes Micro MN66 + Clement focuser + Rigel Quickfinder
Vixen Sphinx + half pillar + Berlebach wooden tripod, Giro 2 alt-az + Nedo surveyor's wooden tripod
Zenitsa 40 mm refractor + 8-24 mm zoom ep on Manfrotto tripod
Carl Zeiss Jena 6x30 binoculars
Yashica 7x50 binoculars


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Eddgie
Postmaster


Reged: 02/01/06
Posts: 7951
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Per Stymne]
      #2936781 - 02/19/09 08:16 AM

Wow.. Never saw this one before. Horribly expensive, but I LOVE the concept! It is ashamed that no one is making something like this in large quantities. I am a visual only observer so don't need to worry about field rotation, and If I could get a mount like this at a Clestron CGE Price, I would be there in a heartbeat!

--------------------
Celestron CGE 1400
Astro-Physics 6" f/8
Celestron EdgeHD C8
Antik AR1/Revenge Plates/Heartless Voodoos



The night sky is my mistress. She seduces me away from all other lovers.


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hudson_yak
Carpal Tunnel


Reged: 11/15/07
Posts: 1548
Loc: Hyde Park, NY, USA
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Eddgie]
      #2936891 - 02/19/09 09:24 AM

Agree, finally an alt-az that's actually a balanced design. The concept seems so obvious when you look at it.

Mike

--------------------
Tele Vue-85 + Quarter Hitch + Berlebach UNI 24
Meade 12" LightBridge
Orion ED100 + Losmandy GM-8
Orion SVP
Meade 8" LX10


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Doug D.
Carpal Tunnel


Reged: 08/23/05
Posts: 2496
Loc: Virginia
Re: Heavy Duty Altaz with Slow Motion controls new [Re: hudson_yak]
      #2936982 - 02/19/09 10:29 AM

The price on that TTS-160 seems a bit insane. Given that it can hardly be called portable, I just don't see why you wouldn't just go with a nice AP 900 or 1200 (or Mach 1) rather than this? Is there a reason to be wedded to Alt/Az (horizon-based) coordinates instead of the more "practical/universal" equatorial coordinate system. Trust me, I use and love alt/az mounts for certain scopes and especially for convenience but I don't get this... what am I missing. I like the overbuilt German engineering involved in this sucker though.

--------------------

Hooville



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AlienRatDog
Carpal Tunnel


Reged: 07/15/05
Posts: 1682
Loc: Ann Arbor
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Doug D.]
      #2937043 - 02/19/09 11:05 AM

I just want a nice Altaz with slow motion controls that can hold a 120-130mm refractors, they seem rare on the market...dont think they exist...well unless I am not finding them...

--------------------
Abe -- the poor PhD student (candidate now!)
-----------------------------------------
12" LX200GPS-SMT w/UHTC
Celestron CPC800XLT w/ Feathertouch 2" Crayford
Orion ED100 w/ Moonlight 2.5" Crayford, Orion ST80
Celestron AS-GT GEM, Vixen Star Guy Pro, FM18 fluid head
Nagler 31mm, 17mm, 13mm, 12mm, 9mm, 2.5x Powermate
Oberwerk 15x70 binoculars
Understanding wife
One beautiful daughter, Emma-Rose (born 7-29-2009)
Twin boys (cats), half Persian/half Alley Cat but all Vermin!


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Per Stymne
super member


Reged: 02/05/05
Posts: 132
Loc: Söderbärke, Sweden
Re: Heavy Duty Altaz with Slow Motion controls new [Re: AlienRatDog]
      #2937623 - 02/19/09 04:28 PM

Neither have I found any heavy duty altaz mounts with manual slow motion controls. There seems to be an upper limit of 6 kgs/15 lbs load. Everything with a greater load capability than that seem to be altaz mounts with no motion controls at all except "push the OTA gently if you want to track".

--------------------
/Per

60°05’N 15°35’E
Intes Micro MN66 + Clement focuser + Rigel Quickfinder
Vixen Sphinx + half pillar + Berlebach wooden tripod, Giro 2 alt-az + Nedo surveyor's wooden tripod
Zenitsa 40 mm refractor + 8-24 mm zoom ep on Manfrotto tripod
Carl Zeiss Jena 6x30 binoculars
Yashica 7x50 binoculars


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Per Stymne
super member


Reged: 02/05/05
Posts: 132
Loc: Söderbärke, Sweden
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Doug D.]
      #2937643 - 02/19/09 04:37 PM

Track The Stars is a Danish design, not a German. Btw, I just discovered they are building a new web site, http://www.trackthestars.com

--------------------
/Per

60°05’N 15°35’E
Intes Micro MN66 + Clement focuser + Rigel Quickfinder
Vixen Sphinx + half pillar + Berlebach wooden tripod, Giro 2 alt-az + Nedo surveyor's wooden tripod
Zenitsa 40 mm refractor + 8-24 mm zoom ep on Manfrotto tripod
Carl Zeiss Jena 6x30 binoculars
Yashica 7x50 binoculars


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Doug D.
Carpal Tunnel


Reged: 08/23/05
Posts: 2496
Loc: Virginia
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Per Stymne]
      #2937698 - 02/19/09 05:06 PM

sorry, my bad. Then I guess I like the overbuilt Danish engineering...

--------------------

Hooville



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DennisF
Pooh-Bah


Reged: 03/03/06
Posts: 1199
Loc: Northern IL
Re: Heavy Duty Altaz with Slow Motion controls new [Re: Doug D.]
      #2938015 - 02/19/09 07:58 PM

Stellarvue has a new mount just out, the MG. Not many out in the field yet. Starlighter has one on order I think. I believe they recommend it up to their 115mm and they tend to be conservative. It does have slo-mo.

--------------------
10" XTi
C6 SE
C8 SE
C8 (late 90's?)
SV80ED
SV102ED
SV M1
Original AYO EzTouch mount
LM Teegul (2)
Gone-ETX 125, C80, ED80SF, PortaMount


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7331Peg
Sirius Observer


Reged: 09/01/08
Posts: 1857
Loc: North coast of Oregon
Re: Heavy Duty Altaz with Slow Motion controls new [Re: AlienRatDog]
      #2938597 - 02/20/09 02:23 AM

The Disc Mount-6 can definitely hold the 120 and 130mm scopes you're referring to - I've had a TMB130 on mine, and it handled it with no problem at all. It doesn't have the slow motion controls, but I ordered the handle for it and I have no problem tracking objects without any stiction in either horizontal or vertical motion. If you're working against gravity in the vertical direction, it sometimes takes a bit more effort to move the scope, but even then, no stiction. It isn't cheap, but it's the best you'll find for a 130mm scope.
Stellarvue is making the M7, which will also hold the 130mm scope, but again, no slow motion controls and with the tripod and saddle plates, it's pretty close to the DM-6 in price.
Teton Telescopes also has the Max Load for alt-az, also expensive and no slo-mo controls, but like the Stellarvue offering, it really doesn't need them.
The Giro may be able to handle the 130mm, but I have no experience with anything that heavy on it.
The reality is that a good mount for a 130mm scope is going to cost quite a bit of money, and the GOOD mounts don't really need slow motion controls.

--------------------
http://bestdoubles.wordpress.com/


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Clive Gibbons
Mostly Harmless


Reged: 05/26/05
Posts: 16724
Loc: Oort Cloud
Re: Heavy Duty Altaz with Slow Motion controls new [Re: DennisF]
      #2952542 - 02/27/09 09:27 AM

Quote:

Stellarvue has a new mount just out, the MG. Not many out in the field yet. Starlighter has one on order I think. I believe they recommend it up to their 115mm and they tend to be conservative. It does have slo-mo.




Yeah, that looks like a good mounting.
Apparently, it's made by
Kunming United Optics and they offer lots of other quality accessories, so no worries.

--------------------


A few telescopes of dubious value.
Understanding wife and two curious cats.

"Semper ubi sub ubi"


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