Author Topic: Advice wanted for a mount for my Celestron C11  (Read 52 times)

Chris Goldsby

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Advice wanted for a mount for my Celestron C11
« on: December 29, 2017, 01:57:12 AM »
HI
I am interested in getting a Used Mount for my C11. I don't think I will be doing imaging initially. Does anyone have any advice on the Celestron CGEM-DX. I could also consider getting a fork mount. For the GGEM-DX is there a problem with getting this repaired, if it needs repairing? What would that cost?
Any advice is welcome.Thanks



redsmicsiti

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Re: Advice wanted for a mount for my Celestron C11
« Reply #1 on: December 29, 2017, 09:40:42 PM »
If you can lift it, the CPC1100 ForkMounk is far more comfortable for viewing as the eyepiece position only varies vertically (up/down).
The advantage of a GEM (CGEM-DX) is it's ability to accept other OTA's in the future.
Cost is always going to be a concern due to shipping charges, but If buying new, I see no issue as it should be covered under warranty.

Mike

Cesar Rojas

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Re: Advice wanted for a mount for my Celestron C11
« Reply #2 on: December 30, 2017, 03:29:50 AM »
As Mike said, for something the price of a used CGEM/DX, you will probably have to repair it yourself if it breaks, due to the cost of shipping and the cost of having it repaired by someone else. New Celestron mounts come with a 2 year warranty. The CGEM/DX is capable of imaging with an 11", as long as you expect to work at it.

rubnirootcount

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Re: Advice wanted for a mount for my Celestron C11
« Reply #3 on: December 31, 2017, 09:59:31 AM »
Quote
HI
I am interested in getting a Used Mount for my C11. I don't think I will be doing imaging initially. Does anyone have any advice on the Celestron CGEM-DX. I could also consider getting a fork mount. For the GGEM-DX is there a problem with getting this repaired, if it needs repairing? What would that cost?
Any advice is welcome.Thanks

For visual, you could probably get away with an AVX. Unless you observe in high winds or other strange conditions, there's no point lugging around a CGEM-DX.

A motorized focuser will eliminate all vibration when focusing on the AVX (the main concern). A motorized Crayford will eliminate vibration *and* image shift.

If you ever decide to do imaging, you still probably would want to start with a small refractor and the AVX will be OK.

The C11 on a fork is a heavy beast. And the mount is not flexible--you couldn't put a small refractor on it unless you piggyback it--still would probably be very unsatisfactory for AP.

Dave Fair

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Re: Advice wanted for a mount for my Celestron C11
« Reply #4 on: January 04, 2018, 04:27:46 PM »
Avx is underrated. Once some big eyepiece, an external focuser and a 2" diagonal it might not slew. It is rated for 15kg that is almost c11 weight.

The external focuser avoid mirror shift and it is possible to rotate it. I found very comfortable to use, so no real disavantage between german and fork.

moreover, you should consider how often you have to mount/dismount your setup.

g11 can be splitted in 2. Cem60 is lightweight. Ieq45pro dual can work also in az..

there are many things to consider

artufanchess

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Re: Advice wanted for a mount for my Celestron C11
« Reply #5 on: January 08, 2018, 02:56:09 PM »
CEM60 and a C11 rocks. Mount is pretty lite weight and works really for imaging. Through the mount cabling so very tidy, motors don't look like after thoughts either. Have a CGEM DX and it's a good mount. In all I looked at all the mounts mentioned and bought two of them. I'm not much of a fiddler or tweaker, like things that work out of the box. Hence one of the three discussed didn't make the grade.

Johnny Jeep

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Re: Advice wanted for a mount for my Celestron C11
« Reply #6 on: January 08, 2018, 09:39:22 PM »
Thanks for the input. the CEM60 looks nice. It is more than I am looking to spend. The CGEM-DX might not hold enough weight,The C11 is heavy.

isanruptysp

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Re: Advice wanted for a mount for my Celestron C11
« Reply #7 on: January 10, 2018, 10:05:20 PM »
Quote
Thanks for the input. the CEM60 looks nice. It is more than I am looking to spend. The CGEM-DX might not hold enough weight,The C11 is heavy.

The CGEM DX holds a C11 no problem.

bardersgarli

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Re: Advice wanted for a mount for my Celestron C11
« Reply #8 on: January 11, 2018, 04:30:51 AM »
Quote
Avx is underrated. Once some big eyepiece, an external focuser and a 2" diagonal it might not slew. It is rated for 15kg that is almost c11 weight.

The external focuser avoid mirror shift and it is possible to rotate it. I found very comfortable to use, so no real disavantage between german and fork.

moreover, you should consider how often you have to mount/dismount your setup.

g11 can be splitted in 2. Cem60 is lightweight. Ieq45pro dual can work also in az..

there are many things to consider

I very much doubt it will not slew, assuming you'll balance it properly. I would be willing to bet it would. I've had a CG-5 with a pretty loaded C9.25 for years (28mm UWAN, heavier than the 31mm Nagler, 2" diagonal, Crayford focuser, dew shield) and it handled it with absolutely no problem. Despite the rating, the AVX seems to me to be if anything a bit beefier.

There's nothing wrong with getting heavier mounts, if you don't mind carrying them. But for a mobile setup, I think the lightweight mount has many practical advantages, unless you're Mr. Gym Rat.

postbypopect

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Re: Advice wanted for a mount for my Celestron C11
« Reply #9 on: January 12, 2018, 10:42:35 AM »
Have you considered an Avalon mount?

jingdilenma

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Re: Advice wanted for a mount for my Celestron C11
« Reply #10 on: January 13, 2018, 08:11:14 AM »
I used my 11" Celestron with my AVX visually all the time. Worked like a champ. Imaging with a 11" SCT especially at f/10 and even at f/6.3 with a focal reducer will be a bit challenging on a CGEM DX but is possible.The only difference between the CGEM and CGEM DX is the DX comes with a CGE tripod and a larger diameter counterweight shaft. Both actually do make a difference. But it will likely less frustrating to go with a CEM60 or Losmandy G11 for imaging with the SCT.You can spend the money now on a DX and likely spend more money later buying a different mount or you can opt for the AVX while waiting and saving a bit more money and getting the mount that will work better for you for imaging.I guess you could find a CPC 1100 fork with no OTA and mount your existing scope on it but imaging with it will require a wedge for exposures over 30-45 seconds. You are better off getting a equatorial mount even for visual.

Darkz Tousa

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Re: Advice wanted for a mount for my Celestron C11
« Reply #11 on: January 14, 2018, 01:19:54 AM »
I reccomend a fork mount if only viewing. Viewing on an EQ mount ads the step of adjusting your diagonal every time you move to another object.

erbarmauhump

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Re: Advice wanted for a mount for my Celestron C11
« Reply #12 on: January 14, 2018, 05:39:45 AM »
Quote

There's nothing wrong with getting heavier mounts, if you don't mind carrying them. But for a mobile setup, I think the lightweight mount has many practical advantages, unless you're Mr. Gym Rat.

Unluckly c11 is not lightweight, something solid is needed. each time i focus on the c925 manually is a pain, each bump another pain

coachroninil

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Re: Advice wanted for a mount for my Celestron C11
« Reply #13 on: January 21, 2018, 07:41:03 AM »
Quote
Quote
There's nothing wrong with getting heavier mounts, if you don't mind carrying them. But for a mobile setup, I think the lightweight mount has many practical advantages, unless you're Mr. Gym Rat.

Unluckly c11 is not lightweight, something solid is needed. each time i focus on the c925 manually is a pain, each bump another pain
For the money difference between an AVX and a heavier mount, you can get a motofocus, and all your pain will go away. Seriously, it's second only to the Polemaster for convenience, and superior to Polemaster if you're visual only.