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Equipment Discussions >> Mounts

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SDStargazer
sage


Reged: 03/24/11

Loc: San Diego, Calif.
Under $2000 new
      #6359921 - 02/06/14 03:04 PM

Looking for EQ mount for imaging under $2000.
I have a CG5 now but my equipment is pushing the payload limit.


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jrcrillyAdministrator
Refractor wienie no more
*****

Reged: 04/30/03

Loc: NE Ohio
Re: Under $2000 new [Re: SDStargazer]
      #6359928 - 02/06/14 03:07 PM

Do you need goto capability? Is second-hand equipment acceptable?

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SDStargazer
sage


Reged: 03/24/11

Loc: San Diego, Calif.
Re: Under $2000 new [Re: jrcrilly]
      #6359932 - 02/06/14 03:10 PM

Definitely need goto (sky to light polluted for star hopping. 2nd hand is always a consideration.

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nmoushon
super member
*****

Reged: 10/12/11

Loc: Stephens City, VA
Re: Under $2000 new [Re: SDStargazer]
      #6359943 - 02/06/14 03:14 PM

If the largest scope you are going to ever use is the 8" Newt you have then I think a Orion Sirius or Atlas second hand would be a good fit. You might be able to go up to a CGEM or CGEM Pro used to if you plan to upgrade in the future.

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jrcrillyAdministrator
Refractor wienie no more
*****

Reged: 04/30/03

Loc: NE Ohio
Re: Under $2000 new [Re: SDStargazer]
      #6359947 - 02/06/14 03:16 PM

Quote:

Definitely need goto (sky to light polluted for star hopping. 2nd hand is always a consideration.




OK. To gain capacity AND improve imaging performance in a goto mount at that price point yields a short list, but there is a list. Best bet is probably a used CGE (usually $1700-$2200). You might find a G-11/Genesis for $2K but they usually go for more. An encoder-equipped G-11 without goto would avoid starhopping and those can be found for under $2000. Both are US-made mounts rather than imports like the CG-5.


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Falcon-
Post Laureate
*****

Reged: 09/11/09

Loc: Gambier Island, BC, Canada
Re: Under $2000 new [Re: jrcrilly]
      #6360358 - 02/06/14 06:25 PM

I disagree a bit with John, the move from a CG5 to an Atlas/CGEM/iEQ45 type mount *will* be a significant improvement in imaging performance so I do think those mounts should be under consideration. All three of those mounts are more robust then the CG5 and mechanically better (easier to guide).

That said, John is of course correct that if you can find a used CGE or G11-Gemini within budget they would be even better. It is a rare thing but if you find a CI-700 with Gemini go-to that would be another good option. That would be a mount mechanically similar to a CGE but with Losmandy's go-to system.


For myself when faced with a similar need to upgrade from a CG5 for imaging performance I ended up with a used Celeston CI-700 (without Gemini). I got it for a good price and this has been a good mount for me but the lack of go-to does make it harder to use.


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payner
scholastic sledgehammer
*****

Reged: 03/22/07

Loc: Bluegrass Region, Kentucky
Re: Under $2000 new [Re: Falcon-]
      #6360381 - 02/06/14 06:32 PM

I agree with the suggestions that a CGE in good condition would make an excellent mount for your application.

Best,
Randy


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epdreher
sage


Reged: 06/12/11

Loc: Republic of Texas
Re: Under $2000 new [Re: payner]
      #6360490 - 02/06/14 07:28 PM

http://www.telescope.com/Mounts-Tripods/Equatorial-Mounts-Tripods/Orion-Atlas...

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jrcrillyAdministrator
Refractor wienie no more
*****

Reged: 04/30/03

Loc: NE Ohio
Re: Under $2000 new [Re: Falcon-]
      #6360508 - 02/06/14 07:35 PM

Quote:

It is a rare thing but if you find a CI-700 with Gemini go-to that would be another good option. That would be a mount mechanically similar to a CGE but with Losmandy's go-to system.




Good point; I haven't seen a CI-700 for a while but they are out there. Quite a few were equipped with encoders, too (mine was) for an extremely economical non-star hopping setup. They are between the G-11 and CGE mechanically (each was developed from the previous design) and their market value is very low, making them a very good buy.


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dragonslayer1
scholastic sledgehammer


Reged: 02/25/12

Loc: SLC, UT
Re: Under $2000 new [Re: jrcrilly]
      #6360869 - 02/06/14 10:39 PM

I have a GC-5 and recently upgraded to a CGEM and love it, Kasey

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Carl N
super member
*****

Reged: 03/18/12

Loc: San Diego, CA
Re: Under $2000 new [Re: dragonslayer1]
      #6361099 - 02/07/14 12:52 AM

You are in luck. Only here in San Diego, Go talk to the manager at FRYs off Aero Drive and I-15. They have new old stock CGEs in the back brand new still in box. Last month they were offering them for $2200. Right now on line they show for $3900 again, but if you talk to the manager he'll discount it to the $2200 to get rid of them.

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SDStargazer
sage


Reged: 03/24/11

Loc: San Diego, Calif.
Re: Under $2000 new [Re: Carl N]
      #6361159 - 02/07/14 01:44 AM

Thanks Carl I will check it out!

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SDStargazer
sage


Reged: 03/24/11

Loc: San Diego, Calif.
Re: Under $2000 new [Re: SDStargazer]
      #6361738 - 02/07/14 11:34 AM

is the ioptron iEQ45 not a good mount? nobody so far has mentioned it.

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Falcon-
Post Laureate
*****

Reged: 09/11/09

Loc: Gambier Island, BC, Canada
Re: Under $2000 new [Re: SDStargazer]
      #6361802 - 02/07/14 12:01 PM

Quote:

is the ioptron iEQ45 not a good mount? nobody so far has mentioned it.




Actually I did mention it.

The iEQ45 appears to be in approximately the same category in terms of performance as the Orion Atlas (also called the Skywatcher EQ6) and the Celestron CGEM. I have not used the iEQ45 myself but my impression is that of the three the iEQ45 may be the best for imaging (though I am sure opinions on that would be divided). Certainly it is the physically lightest of the three.

If it was me with your budget, and a good deal on a used CGE or the like did not show up, then I would seriously consider an iEQ45.


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Per Frejvall
sage


Reged: 09/28/12

Loc: Saltsjöbaden, Sweden
Re: Under $2000 new [Re: Falcon-]
      #6362218 - 02/07/14 03:29 PM

NEQ6, or as they call it state-side, Atlas... Can't beat that.

/per


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karambit27
member


Reged: 08/15/13

Re: Under $2000 [Re: SDStargazer]
      #6362367 - 02/07/14 04:36 PM

Quote:

is the ioptron iEQ45 not a good mount? nobody so far has mentioned it.




Haven't used it myself but read in several places that the payload capacity of 45lbs. is an overstatement as the mount begins to have issues past 30lbs.


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Falcon-
Post Laureate
*****

Reged: 09/11/09

Loc: Gambier Island, BC, Canada
Re: Under $2000 new [Re: karambit27]
      #6362816 - 02/07/14 07:55 PM

Quote:

Quote:

is the ioptron iEQ45 not a good mount? nobody so far has mentioned it.




Haven't used it myself but read in several places that the payload capacity of 45lbs. is an overstatement as the mount begins to have issues past 30lbs.




Undoubtedly true for imaging.

But of course none of the mounts in this price range should be used at their "full" rated capacity. An iEQ45, Atlas, NEQ6, or CGEM operating at 25 lb or so would be significantly better then a CG5 operating at the same weights, and that is the whole point of the new mount for the OP in the first place.


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Erik30
member


Reged: 10/16/12

Loc: Cottage Grove, MN
Re: Under $2000 new [Re: karambit27]
      #6368736 - 02/10/14 04:25 PM

Quote:

Quote:

is the ioptron iEQ45 not a good mount? nobody so far has mentioned it.




Haven't used it myself but read in several places that the payload capacity of 45lbs. is an overstatement as the mount begins to have issues past 30lbs.




Absolutely wrong in my book. I had the CG-5 and went to iEQ45. I image at 41 lbs without a problem even at -5 below temps.


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rgsalinger
super member
*****

Reged: 02/19/07

Loc: Carlsbad Ca
Re: Under $2000 new [Re: Erik30]
      #6369230 - 02/10/14 08:12 PM

Having owned and used both a CGE and an iEQ45, I would strongly recommend the iOptron as the superior mount unless you need to carry much more than 35 pounds or so. I would love to know how anyone got 41 pounds on that mount and was successful in imaging. I know that I couldn't load much above 30 pounds and get round stars no matter how hard I tried. That included having iOptron install the precision worm for me. When I got beyond thirty pounds I couldn't get guiding reliably below 1.2 or so arc seconds. But, again, within the weight limitations this is just a terrific mount - easy to set up and use with good results for imaging or visual, much better than a CGE. I found at 1625mm that I could do a one star alignment and get anything I wanted in the FOV at about 40x every time. The CGE needed a tedious 6 star alignment, and needed a complicated polar alignment procedure. Plus iOptron support is superb, much better than Celestron (IMHO).
Rgrds-Ross


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orlyandico
Post Laureate
*****

Reged: 08/10/09

Loc: Singapore
Re: Under $2000 [Re: rgsalinger]
      #6369826 - 02/11/14 03:49 AM

must have been a very old CGE firmware. In my experience with my CGEM the Nexstar does very accurate GoTo pointing even after only 3 stars. But always end alignment moves with UP and RIGHT.

The Nexstar pointing blows my Mach1 out of the water.. (the Mach1 must be absolutely precisely polar-aligned in order for pointing to be accurate). With my polar alignment (about 8' off the pole in ALT, 2' off the pole in AZ) my pointing can be up to 40' off if I do a meridian flip, although it's more like 2' to 5' on the same side of the meridian.


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