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NJP Takahashi Mount used or go new

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#26 Alterf

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Posted 11 July 2013 - 10:49 PM

PM sent to Tim.

Val

#27 andysea

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Posted 12 July 2013 - 12:37 AM

The gears on the NJP are silicon bronze. I am not sure how long it would take to wear them out. I seem to remember a post from someone who had the mount in an observatory. They never released the clutches and the wheel ended up wearing out unevenly. This would probably not be an issue for most users.
In the event that the bearings wear out, they can be replaced very easily and they are very inexpensive.
That being said, if I had to choose between Tak and AP, at the same price, I would go with the AP without batting an eye.
I own both.
Andy

#28 kevin M13

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Posted 06 October 2013 - 08:21 PM

Agree with the quality of the NJP T2. Not sure a 900 would image for 2 minutes+ unguided at 2800mm. My NJP will, and the polar alighnment scope is a dream to the AP type I used before. I like the new Paramounts though.

#29 orlyandico

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Posted 07 October 2013 - 12:54 AM

I saw the periodic error from an NJP T2 it was about +/- 2".

Since the Tak mounts don't have PEC, that's as good as it's going to get.

An AP900 (or Mach1) would have anywhere from +/- 2" to +/- 3.5" periodic error. But they have PEM. And a good PEM training with PEMPro will drop that PE to +/- 0.5" or even less. So yes, I'm sure anything an NJP can do unguided, an AP900 can do better.

p.s. another used NJP came out on a-mart last week. $3.8K. These are really a great deal if you buy them used. But AP900's are now dropping to $6 - 6.5K level...






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