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Equipment Discussions >> Mounts

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Ryuno
sage


Reged: 05/09/13

Loc: Tokyo
Takahashi EM11 load capacity enough for CN-212? new
      #6163061 - 10/28/13 05:54 PM Attachment (16 downloads)

I am presently using the CN-212 with an iOptron ZEQ25 mount (see picture), but this setup is too unstable and vibration prone for visual. Therefore, I am looking for a more steady alternative, but at the same time staying portable.

The CN-212 without accessories weighs 8kg, with a tube length of about 30". The nominal maximal load capacity of the EM11 is 9kg, the optimal 6kg. However, I read that Tahashi's nominal load capacities are notoriously conservative. Would the EM11 be able to carry a Cn-212 OTA with eyepieces, binoviewer or camera gear etc. so that meaningful work is possible?

Best regards
Heinz


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orlyandico
Postmaster
*****

Reged: 08/10/09

Loc: Singapore
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: Ryuno]
      #6163462 - 10/28/13 10:08 PM

This is... interesting.

8kg is only about 17lb which is far less than the ZEQ25's rated capacity. And you say it's not stable even for visual? granted the CN212 is a long tube, but I guess this says something about iOptron's weight ratings..


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Bluejay08
member


Reged: 09/29/09

Re: Takahashi EM11 load capacity enough for CN-212? new [Re: orlyandico]
      #6163725 - 10/28/13 11:54 PM

212mm in diameter and 855mm in length without accessories, it will be a little challenge to balance on a mount in this payload range. Using an extension bar to balance the OTA won't do any good for stability.

My 2C.

Jay


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TxStars
Pooh-Bah
*****

Reged: 10/01/05

Loc: Lost In Space
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: Ryuno]
      #6163744 - 10/29/13 12:09 AM

I would advise a larger mount.
On my EM-10 (older version of EM-11) the CN-212 was ok for visual both Newt & Cass.
As long as there was not much wind I could on/off guide in cass mode.
I did not have a light guider to mount up top at the time so not sure how well that would work.


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orlyandico
Postmaster
*****

Reged: 08/10/09

Loc: Singapore
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: TxStars]
      #6163766 - 10/29/13 12:22 AM

i think the OP only wants to do visual..

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TxStars
Pooh-Bah
*****

Reged: 10/01/05

Loc: Lost In Space
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: orlyandico]
      #6163816 - 10/29/13 12:57 AM

"Would the EM11 be able to carry a Cn-212 OTA with eyepieces, binoviewer or camera gear etc. so that meaningful work is possible?"

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Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: Ryuno]
      #6164199 - 10/29/13 09:27 AM

Heinz,

In combination with the intended use with binoviewer, (heavy) eyepieces or camera gear, the EM-11 is too light.
Forget the EM-11 for your CN-212, even for visual only. At serious lunar powers of 400x and above, you will never be happy with it.
I would go with the EM-200, this is the right mount for your CN-212 and the mount which Takahashi recommends for OTA's in the Mewlon-210, CN-212 or TOA-130 class.

Stephan


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tomcody
Carpal Tunnel
*****

Reged: 07/06/08

Loc: Titusville, Florida
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: TxStars]
      #6164862 - 10/29/13 04:02 PM

Quote:

"Would the EM11 be able to carry a Cn-212 OTA with eyepieces, binoviewer or camera gear etc. so that meaningful work is possible?"



Check out this site for a good review of EM11 carrying capacity;
web page
Rex


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Ryuno
sage


Reged: 05/09/13

Loc: Tokyo
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: tomcody]
      #6165761 - 10/30/13 06:16 AM

Thank you very much for your help, everyone. I am afraid, I have to face the fact that there is no portable solution for the CN 212 with a German Equatorial Mount. Too sad!
I might have to stick to a altitude-azimuth type of mount, such as the TReX, the DM-mount or the AOK. This also means, that portable imaging will not be possible with the CN 212. There is one solution though, albeit a very expensive one. This is the Danish altitude-azimuth mount TTS-160 Panther, which also was designed for imaging and has a load capacity of more than 20kg, while staying portable. But the price...! This is the link:
http://trackthestars.com/telescope-mounts/tts-160-panther-telescope-mount
A dream?

Heinz


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Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: Ryuno]
      #6165774 - 10/30/13 06:36 AM

Quote:

There is one solution though, albeit a very expensive one. This is the Danish altitude-azimuth mount TTS-160 Panther, which also was designed for imaging and has a load capacity of more than 20kg, while staying portable. But the price...! This is the link:
http://trackthestars.com/telescope-mounts/tts-160-panther-telescope-mount
A dream?

Heinz




Never heard of the Danish TTS-160 Panther mount. Thanks for bringing it to our attention, it looks very interesting! Telescope capacity is specified at generously 16-24 kg, depending on mount configuration and telescope length. Sounds good and well worth to be considered, if money is no problem. In other case, and for portable visual only, I would opt for the AYOmaster from AOK Swiss.

Stephan


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Ryuno
sage


Reged: 05/09/13

Loc: Tokyo
Re: Takahashi EM11 load capacity enough for CN-212? new [Re: Stellarfire]
      #6165805 - 10/30/13 07:25 AM

Yes, the AYOmaster Looks like a very good mount, and it should be able to carry a heavy scope easily, but on the other hand it is more than double the price of a T Rex, And it does not have slow motion controls. The T Rex does have less load capacity but it works very well with my M 250. So it should work also with the CN 212, I suppose.

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Ryuno
sage


Reged: 05/09/13

Loc: Tokyo
Re: Takahashi EM11 load capacity enough for CN-212? [Re: Ryuno]
      #6165811 - 10/30/13 07:30 AM

This Danish mount is rather heavy, so I am a little bit in doubt about the portability. It weighs 25 kg without counterweights. But it is very versatile. It can be used as a side mounting mount, for example to mount to telescopes together on both sides. Or as a centre mounting mount for one telescope only with counterweights, for imaging. And it is very beautiful.

Heinz


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