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Takahashi PM 1

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#1 Nippon

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Posted 13 July 2020 - 06:58 PM

Was the PM 1 a short lived model and if so why was it discontinued?



#2 orlyandico

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Posted 13 July 2020 - 08:49 PM

I think there's no market for non-goto mounts anymore, particularly expensive ones.

 

IMO the PM-1 is a downgrade from the Space Boy and P2Z because it lacks setting circles.  Having a non-goto mount with no setting circles seems a bit backward.


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#3 whwang

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Posted 13 July 2020 - 08:58 PM

I sold my PM-1 a few years ago.  It was a fine mount.  I took it with me to the US for the 2017 total eclipse.  It worked just fine.  I sold it because its payload is a bit too low for my new 500mm lens.  

 

In my 30 years of using eq mounts, goto or not, I have never used the settle circles.  I do agree that it is too expensive in today's standard.



#4 andysea

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Posted 13 July 2020 - 09:00 PM

I think Orly is right.

I really like my PM-1 but a goto version that can be auto guided would be nice. That being said it's a very simple and very accurate mount, just like the P2-Z. I never used setting circles either so that is a non issue for me.


Edited by andysea, 13 July 2020 - 09:00 PM.

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#5 orlyandico

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Posted 13 July 2020 - 11:42 PM

I’m not very good at framing objects so without GoTo, I would like to see setting circles. This is why I prefer the SP to the GP, and why I didn’t buy a Sky Patrol or PM-1.

#6 Nippon

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Posted 14 July 2020 - 06:01 AM

I'm a fan of setting circles. I mostly use the Dec circle and sweep up what I'm looking for in RA. I didn't realize the PM 1 did not have them. I think the light weight Vixen AP is a really nice small EQ but no setting circles. Observing these days in light polluted urban skies I think setting circles are a must if you don't have goto


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#7 Hesiod

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Posted 14 July 2020 - 11:07 AM

Well, I use the Astrotrac to observe from home, and I live in the awfully light-pollution washed main plain of northern Italy.

Since those mounts can handle only small telescopes (the heavies thing I managed to use on the Astrotrac is a C8, and guess would be the same with the AP), and those telescopes have all reasonably large fields, finding stuff is much less hard than actually seeing it.

 

However I think that setting circles could have been useful for astrophotography, especially if want to aim the camera not to an object but at a specific point in the sky, and do this repeatably



#8 orlyandico

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Posted 14 July 2020 - 07:53 PM

My problem was that, it's very hard to see an object in the camera viewfinder (or live view), so even if you can find something in the eyepiece of a telescope, it's much harder to frame it properly with a camera..


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