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Eric Gage
scholastic sledgehammer


Reged: 12/13/05
Posts: 993
Ordered the Sphinx! new
      #3224145 - 07/17/09 09:07 PM

Thanks for all the help from CN'ers as I have been researching GEM's. I was looking into the GM-8, the CGEM and the Sphinx for a couple of weeks. The final decision was difficult, between the CGEM and the Sphinx. I think that I ended up on the road less taken, but for me, the fact that the Sphinx is noted to be quite stable despite being 50 pounds lighter --yep 50 lbs lighter than the CGEM could not be ignored.

It should be here next Friday.


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Taylor
scholastic sledgehammer


Reged: 07/10/05
Posts: 765
Loc: Owasso, OK
Re: Ordered the Sphinx! new [Re: Eric Gage]
      #3224182 - 07/17/09 09:21 PM

Nice! You're going to love it.
50 lbs lighter sealed the deal for me too. And the fact that I don't have 40 lbs worth of gear to put on the CGEM...


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NewAstronomer
Post Laureate


Reged: 09/03/04
Posts: 3767
Loc: Northeast, PA U.S.A
Re: Ordered the Sphinx! new [Re: Taylor]
      #3224349 - 07/17/09 11:15 PM

Congrats! Let us know what you think of the Sphinx!
One question,
50 lbs lighter ? The product specs of CGEM indicate total weight 41 lbs with tripod (no counter weights). Do you mean the CGE ?

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


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Eric Gage
scholastic sledgehammer


Reged: 12/13/05
Posts: 993
Re: Ordered the Sphinx! new [Re: NewAstronomer]
      #3224384 - 07/17/09 11:37 PM

Quote:

Congrats! Let us know what you think of the Sphinx!
One question,
50 lbs lighter ? The product specs of CGEM indicate total weight 41 lbs with tripod (no counter weights). Do you mean the CGE ?




The CGEM weight breaks down like this:

mount 41 lbs
tripod 17 lbs
counterweight 17 lbs

Total=75 lbs

--------------------
Eric
---------------------
WO 80mm 10th Anniversary
TSA120
PST
EM-200 T2
Canon 500D, full spectrum mod (thanks, Gary Honis)
15" Obsession with ServoCat



Edited by Eric Gage (07/17/09 11:38 PM)


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GaryML
sage


Reged: 02/16/09
Posts: 348
Loc: San Diego, California
Re: Ordered the Sphinx! new [Re: Eric Gage]
      #3224476 - 07/18/09 01:11 AM

Quote:

Quote:


... One question,
50 lbs lighter ? The product specs of CGEM indicate total weight 41 lbs with tripod (no counter weights). Do you mean the CGE ?




The CGEM weight breaks down like this:

mount 41 lbs
tripod 17 lbs
counterweight 17 lbs

Total=75 lbs




Congratulations on the new mount.

The Sphinx with the HAL-130 tripod, but without the CW, weighs 27 lbs. You will need at least one CW at 4 lbs and possibly 2, depending on how much stuff you add to the TV 85. With one CW, the total is 31 lbs and with two it is 35 lbs. So that is 39 to 44 lbs. lighter.

Be sure to update to the newest firmware (ver 2.1) (even though it is a Windows installer) as it adds several useful features including a quieter (but slower) slew option.

--------------------
Sky conditions in San Diego, California:



Celestron NexStar 8 SE
Nikon 7x50 IF SP Binoculars
______________________________________________________
Avatar: Gemini North on Mauna Kea, November, 2008.


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sctchun
sage


Reged: 03/26/06
Posts: 292
Loc: On a rock in the middle of the...
Re: Ordered the Sphinx! new [Re: GaryML]
      #3224628 - 07/18/09 05:07 AM

Congratulations Eric, hope you enjoy the mount, I sure do.

I think it may be possible for Eric to run the Sphinx with a naked CW bar. Since part of the design with the Sphinx is that both motors are mounted opposite the scope thus acting like a CW. I was able to mount my 80mm with no CW.

With my imaging setup, with Stellarvue Rings, DSLR, Mini Borg Guide Scope, Finderscope rings, Orion Guider, I need to place 1 4.2lb CW placed all the way in.

Steven

--------------------
AT 8" IN
Meade 8" LX200-R (ACF)
Meade Series 5000 80mm
Vixen Sphinx SXW


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adamsp123
scholastic sledgehammer


Reged: 11/20/08
Posts: 807
Loc: welshpool mid wales UK
Re: Ordered the Sphinx! new [Re: sctchun]
      #3224711 - 07/18/09 07:18 AM

Good choice IMO you will really find it nice to use.
Did you order the HAL tripod or pillar?
If you have the tripod make sure the legs are fully spread and for imaging best not to extend the legs.
I gently kick the legs of my HAL tripod before and after putting on the OTA then it is very stable.

--------------------
SkyWatcher 120ED PRO plus dedicated Flattener, SW 190MN , WO 72ED & 66ED
Vixen Sphinx with starbook, Atlux with Nexatlux
QHY5 finder guider, Modded Canon 1000D, Atik 383L+ Mono and filters

Don't you wish there were a knob on the TV to turn up the intelligence? There's one marked 'Brightness,' but it doesn't work."

TV is called a "medium" because it is neither rare nor well done.


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Eric Gage
scholastic sledgehammer


Reged: 12/13/05
Posts: 993
Re: Ordered the Sphinx! new [Re: adamsp123]
      #3225035 - 07/18/09 11:57 AM

It is currently packaged with the HAL 130, which is taller than the 110. My suspicion is that for AP, I'll probably want to use the tripod with the legs fully retracted for stability, in which case I'll need the half-pillar, but I thought I'd kick the tires as is for a bit. I did order the polar alignment scope.

--------------------
Eric
---------------------
WO 80mm 10th Anniversary
TSA120
PST
EM-200 T2
Canon 500D, full spectrum mod (thanks, Gary Honis)
15" Obsession with ServoCat



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NewAstronomer
Post Laureate


Reged: 09/03/04
Posts: 3767
Loc: Northeast, PA U.S.A
Re: Ordered the Sphinx! new [Re: Eric Gage]
      #3225223 - 07/18/09 01:56 PM

Quote:

Quote:

Congrats! Let us know what you think of the Sphinx!
One question,
50 lbs lighter ? The product specs of CGEM indicate total weight 41 lbs with tripod (no counter weights). Do you mean the CGE ?




The CGEM weight breaks down like this:

mount 41 lbs
tripod 17 lbs
counterweight 17 lbs

Total=75 lbs




Wow, I wouldn't use a 17 lbs of counterweight for a TV 85! I don't think that would balance. But the CGEM would be too heavy for just a TV85, The Sphinx sounds like the much better choice (similar to, but less expensive than, the Tak EM-11).

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


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Eric Gage
scholastic sledgehammer


Reged: 12/13/05
Posts: 993
Re: Ordered the Sphinx! [Re: NewAstronomer]
      #3225532 - 07/18/09 05:35 PM

An EM-11 would have been a fine alternative, yes.

--------------------
Eric
---------------------
WO 80mm 10th Anniversary
TSA120
PST
EM-200 T2
Canon 500D, full spectrum mod (thanks, Gary Honis)
15" Obsession with ServoCat



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