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Which Dovetail for TSA-120?

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#1 agmoonsolns

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Posted 18 November 2018 - 04:36 AM

Which size and brand of dovetail plate are you using with your Takahashi TSA-120? I have a short ADM plate, but thinking a longer version might be better. Any suggestions?


Edited by agmoonsolns, 18 November 2018 - 04:37 AM.


#2 RAKing

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Posted 18 November 2018 - 07:36 AM

The TSA-120 is small and light.  I used a 9-inch Losmandy plate and it worked fine.

 

But I used a set of Parallax rings. If you have the stock clamshell, the shorter plate is good. You just need one with the proper spacing and tapped holes for the 8mm bolts Tak uses.

 

Cheers,

 

Ron



#3 agmoonsolns

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Posted 18 November 2018 - 03:15 PM

I have the rings and the 9" ADM plate. I was kind of thinking something longer might be better though? 



#4 RAKing

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Posted 18 November 2018 - 04:44 PM

My apologies.  I went downstairs and measured mine.  It is 11 inches.

 

Sorry, but my internet connection went on the fritz and I couldn't edit my first post in time.

 

The 11-inch plate doesn't look very long and I relied on memory - wrong! tongue2.gif 

 

Hope this helps!

 

Ron


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#5 agmoonsolns

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Posted 18 November 2018 - 05:03 PM

That sounds about right. I was thinking 11" to 14"? I also want to put a Vixen dovetail on top to serve as a solid handle and for mounting accessories. I thought saw somewhere reverse Vixen dovetail accessory mounting bases for putting finderscopes, piggyback cameras, and tube counterweights on top of a Vixen dovetail bar like this. Anyone know who sells that? It might have been someone in China on ebay. It looked like a great idea and now I want to try it.



#6 sewhite

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Posted 18 November 2018 - 05:10 PM

I believe AMD makes dovetail accessories that will fit your needs.

 

Stan


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#7 Kunama

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Posted 18 November 2018 - 05:35 PM

Here are the Parallax rings with the Losmandy Universal 14" Dovetail Plate 

Attached Thumbnails

  • MIS_4564 (1).jpg

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#8 agmoonsolns

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Posted 18 November 2018 - 05:58 PM

Kunama, wow, gorgeous set-up! Thank you for the photo, now I know it's the 14" plate I want. Helps so much, thanks!



#9 Birddogoby

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Posted 19 January 2020 - 10:57 AM

I’m considering adding the Parallax and Losmandy plate to my Tak 120 too. Did the L. plate have to be drilled and tapped specifically for the Parallax rings or did the pre-drilled holes in the plate match the ring spacing out of the box?



#10 RAKing

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Posted 19 January 2020 - 12:17 PM

I’m considering adding the Parallax and Losmandy plate to my Tak 120 too. Did the L. plate have to be drilled and tapped specifically for the Parallax rings or did the pre-drilled holes in the plate match the ring spacing out of the box?

If you order the Parallax rings with the "Standard Drilling" pattern, the holes will match up just fine.  Those holes will be 2" OC and drilled for 1/4x20 bolts.

 

Cheers,

 

Ron

 

PS - I would also consider the PrimaLuce rings and dovetail system.  These are very nicely made and much lighter than the Parallax/Losmandy combo.  PrimaLuce also has some special photo setups you might be interested in.

 

I have used both sets of rings and dovetails and like the PL stuff better! (You can buy a longer dovetail if you feel the need.)  cool.gif

 

TSA-120 091519-2.JPG

 


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#11 mtminnesota

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Posted 11 February 2020 - 04:09 PM

I have the Farpoint 7 inch plate for my TSA-120 and Losmandy G11.  Is there anything to be gained by going to a longer plate?



#12 Travellingbears

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Posted 11 February 2020 - 04:25 PM

I’ve used Moonlite plate and rings (their FSQ-106 is right size) for TSA120. I have ADM plate on top.

 

Dave

 

E5217567 2203 46D2 AE50 74B99A66A909


#13 dr.who

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Posted 11 February 2020 - 04:32 PM

On mine I used the Losmandy 13" D plate. It was long for what was needed. I also swapped the Parallax rings out for the PrimaLuce Lab's ones. Much lighter. I would have also moved to the 9" D plate from PLL had I not sold the scope. I now regret selling it even though I have a TOA 130 and 150. I may end up selling the 130 and getting the 120 again. Great scope! Super light and performs really well! 



#14 RAKing

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Posted 11 February 2020 - 05:30 PM

I have the Farpoint 7 inch plate for my TSA-120 and Losmandy G11.  Is there anything to be gained by going to a longer plate?

No.  You are simply adding extra weight - that must be counterbalanced, etc.  As long as the dovetail is a solid fit in the saddle, that is all you need.  In the picture above, mine has the 240mm (~9 1/2") PrimaLuce plate and it is solid.

 

The TSA-120 is a nice, light triplet and it performs very well, IMHO!

 

Cheers,

 

Ron


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#15 25585

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Posted 11 February 2020 - 05:39 PM

I use a 495mm Primaluce D bar.  https://www.firstlig...-dovetail.html 




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