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FIELD TEST: THE NOH CT-20 ALT-AZ MOUNT

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#1 BillP

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Posted 01 September 2021 - 05:02 AM

After several weeks of field use of the NoH CT-20 mount for general astronomical observing with both my TSA-102 and APM-152 refractors, I found the operation and use of this mount to be highly intuitive in the field. The axis friction knobs are conveniently located and are tactile-distinctive from the saddle plate knobs that hold the telescope on the mount, so there was never any question in the dark as to which knob-type I was operating. Operation of the mount was also smooth and precise throughout the testing and general field observing sessions. At no time did I ever find that the CT-20 mount was anything but superlatively capable to handle even my large 6-inch f/8 refractor.

Click here to view the article
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#2 eyeoftexas

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Posted 01 September 2021 - 11:56 AM

Thanks for the very in-depth and informative review.  I apologize if I missed this, but could you tell us your experiences with other Alt-Az mounts, and maybe briefly how they compare?


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#3 Francobar

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Posted 01 September 2021 - 12:19 PM

Thanks for the accurate review.

Look like a good and very strong mount, a small improvement could be a 2" knobs like the M002C of Stellarvue instead of the 1" installed.

I'll keep it in consideration since I'm looking for a mount with similar specs.



#4 Deadlake

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Posted 02 September 2021 - 03:04 PM

The one missing feature of this mount is the slow mo. How well does following Jupiter or Saturn work with this mount?  



#5 DeanD

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Posted 03 September 2021 - 07:17 PM

Thanks for this article Bill! Great report (in your tradition of course), and makes me very tempted to get in touch with Mr NoH!

Keep up the good work. :)

- Dean


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#6 BillP

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Posted 04 September 2021 - 03:06 PM

Reminder - as stated in the review, please address any questions you might have specifically for me regarding this review to my personal email. Appreciated.

#7 Starman81

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Posted 08 September 2021 - 02:11 PM

Reminder - as stated in the review, please address any questions you might have specifically for me regarding this review to my personal email. Appreciated.

 

Is this to comply with some CN rule because you are a vendor, Bill? Havin the discussion here where everyone can learn and benefit rather than having it relegated to 1 on 1 email correspondence seems like a better option. But perhaps you are bound by some rules (?)...


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#8 rboe

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Posted 10 September 2021 - 10:50 PM

If a review is posted on CN then it's only good form to keep the discussion on CN for the benefit of all. Otherwise; post the review elsewhere.


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#9 Francobar

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Posted 12 September 2021 - 12:14 PM

Hey Folks,

someone has already bought this set up and has an idea of customs + tax + shipping costs in addition to the $ 750 needed for the extension and head.

Thanks



#10 Scott in NC

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Posted 12 September 2021 - 08:08 PM

If a review is posted on CN then it's only good form to keep the discussion on CN for the benefit of all.

Agreed.  We’d like to encourage active discussions about all review articles in the open forum so that all of our members have a chance to benefit from the questions and answers, rather than just the member asking the question.


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#11 KJL

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Posted 30 September 2021 - 10:25 AM

Reminder - as stated in the review, please address any questions you might have specifically for me regarding this review to my personal email. Appreciated.

I think CN may have just jumped the shark for me, turning a review into a purely promotional activity.


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#12 NoHsMount

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Posted 05 October 2021 - 11:08 PM

I finally got a new device for the CT-20. 

Most people have used the DSC system.

I would like to introduce you to ASTROID using PLATE-SOLVING.

ASTROID is similar to celestron's starsense, but I think ASTROID is superior in performance.

It took less than a minute to find a star even at a magnification of about 66 (C8 + eyepiece 30mm)

https://youtu.be/4-gNcAkHtXo


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#13 Kelly Marie

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Posted 14 May 2022 - 03:52 PM

I'd like to get the CT-20 to replace my Manfrotto Nitrotech 612 head. The weight capacity is adequate enough for all my scopes.



#14 stubeeef

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Posted 29 June 2022 - 04:42 PM

Looks and sounds great, if it had simple printed/engraved setting circles for ALT and AZ I'd buy NOW.



#15 moflon

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Posted 05 July 2022 - 01:02 AM

Great product, would love to have a CT-20.



#16 stubeeef

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Posted 05 July 2022 - 07:10 AM

I reached out to them about printing AZ and ALT setting circles....It seemed they didn't understand I was talking about. kept referring to electronics. I sent pics and emphasized NOT electronic and never heard back.

Does look nice, but I want the simple, yet inexplicably impossible to get, manual setting circles.


Edited by stubeeef, 05 July 2022 - 05:10 PM.


#17 NoHsMount

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Posted 10 July 2022 - 07:06 AM

I reached out to them about printing AZ and ALT setting circles....It seemed they didn't understand I was talking about. kept referring to electronics. I sent pics and emphasized NOT electronic and never heard back.

Does look nice, but I want the simple, yet inexplicably impossible to get, manual setting circles.

I'm really sorry.
I didn't understand what you were saying.
We do not make AZ and ALT setting circles.



#18 stubeeef

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Posted 10 July 2022 - 09:00 AM

I'm really sorry.
I didn't understand what you were saying.
We do not make AZ and ALT setting circles.

I know, thats why I suggested you ADD them.....its simply numbers printed on your metal.  NOT ELECTRONIC setting circles NOTHING ELECTRICAL AND NO ENCODERS, simply the numbers 000-359 on your AZ axis and 0-90 on your ALT. 

As l had suggested before, and sent you a picture of an example.

 

Like this, just printed on, not electronic, no encoders, just printed on there.

 

gallery_211308_16943_1311260.png


Edited by stubeeef, 10 July 2022 - 09:13 AM.


#19 stubeeef

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Posted 10 July 2022 - 09:22 AM

Something like this placed properly.

 

gallery_211308_16943_1334674.png



#20 NoHsMount

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Posted 11 July 2022 - 09:41 AM

Something like this placed properly.

 

gallery_211308_16943_1334674.png

I am really sorry.
We have no plans to make AZ and ALT setting circles.



#21 stubeeef

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Posted 11 July 2022 - 12:50 PM

Ok thanks



#22 eyeoftexas

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Posted 11 July 2022 - 09:33 PM

I am really sorry.
We have no plans to make AZ and ALT setting circles.

Have you considered modifying it to allow encoders to be installed?  Being able to use Nexus DSC or other system would enhance the use of the mount.



#23 NoHsMount

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Posted 13 July 2022 - 10:28 PM

Have you considered modifying it to allow encoders to be installed?  Being able to use Nexus DSC or other system would enhance the use of the mount.

We are going to use a device called an astroid. Astroid uses plate-solving technology. Sales are scheduled to begin in September. The price is 570 dollars. All you need to use Astroid is a portable battery and a smartphone.


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