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two scopes one mount question

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#1 Casey Thrower

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Posted 18 August 2012 - 01:10 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?

#2 Whichwayisnorth

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Posted 18 August 2012 - 02:03 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?

#3 Casey Thrower

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Posted 18 August 2012 - 02:15 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://admaccessorie..._Series_SBS.htm

#4 mclewis1

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Posted 18 August 2012 - 07:00 PM

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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#5 mclewis1

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Posted 18 August 2012 - 07:02 PM

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

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#6 Casey Thrower

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Posted 18 August 2012 - 10:37 PM

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#7 Casey Thrower

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Posted 18 August 2012 - 10:54 PM

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

#8 MRNUTTY

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Posted 19 August 2012 - 07:18 AM

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

#9 hottr6

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Posted 19 August 2012 - 09:24 AM

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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#10 hottr6

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Posted 19 August 2012 - 09:25 AM

Another of the rig.

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#11 BKBrown

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Posted 19 August 2012 - 02:37 PM

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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#12 Casey Thrower

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Posted 19 August 2012 - 02:47 PM

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?

#13 mclewis1

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Posted 19 August 2012 - 03:16 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.

#14 Casey Thrower

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Posted 19 August 2012 - 03:22 PM

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

#15 AstroGabe

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Posted 19 August 2012 - 08:36 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

#16 wolfman_4_ever

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Posted 20 August 2012 - 01:07 PM

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...

#17 wolfman_4_ever

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Posted 20 August 2012 - 01:08 PM

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?

#18 gnowellsct

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Posted 20 August 2012 - 11:21 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?


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.

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