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Ordered the Sphinx!

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#1 Renae Gage

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Posted 17 July 2009 - 08:07 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 :p --yep 50 lbs lighter than the CGEM could not be ignored.

It should be here next Friday. :praying: :yay:

#2 Taylor

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Posted 17 July 2009 - 08:21 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...

#3 NewAstronomer

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Posted 17 July 2009 - 10:15 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 ?

#4 Renae Gage

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Posted 17 July 2009 - 10:37 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 ?


The CGEM weight breaks down like this:

mount 41 lbs
tripod 17 lbs
counterweight 17 lbs

Total=75 lbs :tonofbricks:

#5 GaryML

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Posted 18 July 2009 - 12:11 AM


... 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. :waytogo:

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.

#6 sctchun

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Posted 18 July 2009 - 04:07 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

#7 adamsp123

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Posted 18 July 2009 - 06:18 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.

#8 Renae Gage

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Posted 18 July 2009 - 10:57 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.

#9 NewAstronomer

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Posted 18 July 2009 - 12:56 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 ?


The CGEM weight breaks down like this:

mount 41 lbs
tripod 17 lbs
counterweight 17 lbs

Total=75 lbs :tonofbricks:


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).

#10 Renae Gage

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Posted 18 July 2009 - 04:35 PM

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






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