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Equipment Discussions >> Mounts

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Casey Thrower
member


Reged: 07/29/12

two scopes one mount question new
      #5374769 - 08/18/12 02:10 PM

Looking to place a SC along side the refractor on my mount. Or is it better for a piggyback mount? Anyone have pics they could share if theirs?

Edited by Casey Thrower (08/18/12 07:34 PM)


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Whichwayisnorth
Pooh-Bah
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Reged: 07/04/11

Loc: Southern California
Re: two scopes one mount new [Re: Casey Thrower]
      #5374837 - 08/18/12 03:03 PM

We need to know what mount you have so we know what its carrying capacity is. Then we need to find you a compatible side by side saddle plate system like the ones from ADM. They can get expensive. What is your budget?

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Casey Thrower
member


Reged: 07/29/12

Re: two scopes one mount new [Re: Whichwayisnorth]
      #5374856 - 08/18/12 03:15 PM

Celestron SG 5. 35 lb is the max weight. Looking to put a Celestron C6 with my ES ED 80. About 16 lbs for both scopes. Maybe something like this: http://admaccessories.com/DV_Series_SBS.htm

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mclewis1
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Reged: 02/25/06

Loc: New Brunswick, Canada
Re: two scopes one mount new [Re: Casey Thrower]
      #5375134 - 08/18/12 08:00 PM Attachment (22 downloads)

CG-5 with C6 and an AT80ED side by side using an ADM V series SbS setup. There's also an Orion SVP pier extension in there too. Works great.

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mclewis1
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Reged: 02/25/06

Loc: New Brunswick, Canada
Re: two scopes one mount new [Re: mclewis1]
      #5375140 - 08/18/12 08:02 PM Attachment (29 downloads)

But if I'm imaging with the C6 this is my preferred setup (lighter and less complex).

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Casey Thrower
member


Reged: 07/29/12

Re: two scopes one mount *DELETED* new [Re: mclewis1]
      #5375342 - 08/18/12 11:37 PM

Post deleted by Casey Thrower

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Casey Thrower
member


Reged: 07/29/12

Re: two scopes one mount new [Re: Casey Thrower]
      #5375359 - 08/18/12 11:54 PM

Does the sbs come with a dovetail or is it extra?

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MRNUTTY
Carpal Tunnel
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Reged: 11/22/11

Loc: Mendon, MA
Re: two scopes one mount new [Re: Casey Thrower]
      #5375572 - 08/19/12 08:18 AM

The ADM can be ordered with V-series, D-series, or Dual saddles. I have dual saddles :-)

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hottr6
Carpal Tunnel
*****

Reged: 06/28/09

Loc: 7,500', Magdalena Mtns, NM
Re: two scopes one mount question new [Re: Casey Thrower]
      #5375723 - 08/19/12 10:24 AM Attachment (17 downloads)

I use Ken Dauzat's NLA dual saddle for side-by-side testing. The advantage of his design is that I can parallelize the OTAs so they can view the same target.... something not possible with other dual saddles.

In this shot, I have a 105mm f/13 and 90mm f/11 'fracs which waaaaaay overloaded the CG5, though the total weight was less than 24 lbs. The long tube length is the killer here. Currently, I am testing in parallel a 150mm f/5 Newt and the 90mm 'frac.... still too much for the CG5, even though it comes in at under 20 lbs. Later I'll be side-by-side testing 114mm f/8 and 130mm f/5 Newts.


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hottr6
Carpal Tunnel
*****

Reged: 06/28/09

Loc: 7,500', Magdalena Mtns, NM
Re: two scopes one mount question new [Re: hottr6]
      #5375725 - 08/19/12 10:25 AM Attachment (15 downloads)

Another of the rig.

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BKBrown
Post Laureate
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Reged: 08/23/09

Loc: Northern Virginia, USA
Re: two scopes one mount question new [Re: Casey Thrower]
      #5376141 - 08/19/12 03:37 PM Attachment (15 downloads)

Hi Casey,

I think you may have already seen my side-by-side rig, but I'll post it again to support the discussion. This is an ADM SBS bar with a Losmandy D saddle on the left (under the SW100ED) and a dual saddle on the right under the ES80ED. Works great on my Sirius, you can probably handle this set up on your mount as well. Hope this helps!

Clear Skies,
Brian


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Casey Thrower
member


Reged: 07/29/12

Re: two scopes one mount question new [Re: BKBrown]
      #5376160 - 08/19/12 03:47 PM

Quote:

Hi Casey,

I think you may have already seen my side-by-side rig, but I'll post it again to support the discussion. This is an ADM SBS bar with a Losmandy D saddle on the left (under the SW100ED) and a dual saddle on the right under the ES80ED. Works great on my Sirius, you can probably handle this set up on your mount as well. Hope this helps!

Clear Skies,
Brian




Thanks for the pic. Does the setup come with a dovetail that goes on the bottom of the side by side which then attaches to the mount?

Edited by Casey Thrower (08/19/12 03:48 PM)


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mclewis1
Thread Killer
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Reged: 02/25/06

Loc: New Brunswick, Canada
Re: two scopes one mount question new [Re: Casey Thrower]
      #5376203 - 08/19/12 04:16 PM

Casey,

SbS configurations are usually a solid cross bar (a dovetail bar) with a saddle on each end. You slide or place the cross bar into the original saddle on your mount. The dovetail bar used for the cross bar matches the dovetail bars used on your scopes so it fits into the original saddle just like one of your scopes do. Yes this also means that your mount's saddle is now oriented 90° from where it normally is. With a Celestron mount there is a specific function in the hand controller that takes this new orientation into account when slewing to the alignment stars. Most other mounts either don't care about the orientation or also have firmware to handle the situation.

To balance the new setup you slide the cross bar back and forth within that saddle to balance the two scopes against each other and you move each scope back and forth to balance them within the SbS saddles.

Edited by mclewis1 (08/19/12 04:19 PM)


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Casey Thrower
member


Reged: 07/29/12

Re: two scopes one mount question new [Re: mclewis1]
      #5376215 - 08/19/12 04:22 PM

Thanks for the help. Looking for my SG-5 any day now.

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AstroGabe
sage


Reged: 01/10/10

Loc: SE Wisconsin
Re: two scopes one mount question new [Re: Casey Thrower]
      #5376636 - 08/19/12 09:36 PM

I'm curious about the SbS saddle option for visual as well as AP. I'm wondering though, will the SbS configuration allow more differential flexure than a stacked imaging + guidescope configuration? I'm thinking it might since there are essentially two contact points (each scope's saddle) between the two scopes whereas in the stacked config there's only one.

Gabe


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wolfman_4_ever
Pooh-Bah


Reged: 07/15/11

Loc: El Segundo, Ca, So. Cal
Re: two scopes one mount question new [Re: hottr6]
      #5377654 - 08/20/12 02:07 PM

Quote:

I use Ken Dauzat's NLA dual saddle for side-by-side testing. The advantage of his design is that I can parallelize the OTAs so they can view the same target.... something not possible with other dual saddles.





ADM SBS can do this as well if you also have the MAX Guider...


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wolfman_4_ever
Pooh-Bah


Reged: 07/15/11

Loc: El Segundo, Ca, So. Cal
Re: two scopes one mount question new [Re: Casey Thrower]
      #5377656 - 08/20/12 02:08 PM

Quote:

Thanks for the help. Looking for my SG-5 any day now.




What's an SG-5? You keep saying SG-5. Just wondering if you mean CG-5?


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gnowellsct
Postmaster
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Reged: 06/24/09

Re: two scopes one mount question [Re: Casey Thrower]
      #5378634 - 08/21/12 12:21 AM Attachment (11 downloads)

Quote:

Looking to place a SC along side the refractor on my mount. Or is it better for a piggyback mount? Anyone have pics they could share if theirs?




For photography I'd recommend side-by-side with a good system such as the one sold by Casady. My system works for visual but whether in rings or the APM microfocuser, you get some movement of the refractor. That said the APM microfocuser is the fastest set up and easier to use because one can adjust the refractor so easily.

Edited by gnowellsct (08/21/12 12:24 AM)


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