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Equipment Discussions >> Refractors

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johnnyha
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Reged: 11/12/06

Loc: Sherman Oaks, CA
Re: Yet another TSA-120!!! new [Re: StarDust1]
      #5820877 - 04/24/13 09:26 PM

How is the stock focuser Sergio? I had heard that the TSA120 has an upgraded focuser with less image shift than earlier Taks. They certainly are gorgeous to look at.

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crazyqban
Carpal Tunnel
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Reged: 12/16/08

Loc: Miami, Florida
Re: Yet another TSA-120!!! new [Re: StarDust1]
      #5821182 - 04/25/13 01:29 AM

Thanks EricCCD, StarDust1.

Johnny, the focuser is not too bad but it is not a FEathertouch. I don't think that anything comes close to the larger Feathertouch foucusers, they are just wonderful.


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Erik Bakker
Post Laureate
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Reged: 08/10/06

Loc: The Netherlands, Europe
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5821272 - 04/25/13 03:18 AM

Quote:

Both objectives...




Hi Sergio,
Beautiful pictures of these scopes side-side. But where is the glass in your FS

Looking forward to hear how your samples of FS and TSA compare for you.

I did that test with my samples and found that at high powers, the FS has a cleanliness to the star images and planets that is comparable to how the objectives look in your picture. The TSA has a color free images that are just iIncredible though.

Hope you're in for some good weather soon


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bb4
super member


Reged: 04/16/07

Re: Yet another TSA-120!!! new [Re: Erik Bakker]
      #5836562 - 05/02/13 03:13 PM

Looks great Sergio -

Hey, do you happen to know what the load capacity is for the stock focuser? I am thinking about getting one of these myself and dont no if I should keep the tak focuser, do the simple FT retrofit, are get an entire FT focuser system including the adapter to the OTA. Anyone no the answer here?

Cheers


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crazyqban
Carpal Tunnel
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Reged: 12/16/08

Loc: Miami, Florida
Re: Yet another TSA-120!!! new [Re: bb4]
      #5836592 - 05/02/13 03:27 PM

So far I am happy with the Takahashi focuser. The 3" & 3.5" Feathertouch focusers are better as far as I am concerned but perhaps not at the added expense. For the moment I can live with the stock Tak focuser. What I am on the fence about is which scope I should keep. I am not totally sure if the 18mm difference in aperture is enough to justify the move but I still have not had the chance to do a head to head comparison and probably wont until I get my new mount. As far as the Feathertouch retrofit is concerned, I had one on my FS-102 and I thought it was OK. More to come when I get a good night to put both scope through the paces.

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Mike Clemens
Frozen to Eyepiece
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Reged: 11/26/05

Loc: Alaska, USA
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5836682 - 05/02/13 04:23 PM

Sergio, what a great setup. Congratulations on the new TSA

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crazyqban
Carpal Tunnel
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Reged: 12/16/08

Loc: Miami, Florida
Re: Yet another TSA-120!!! new [Re: Mike Clemens]
      #5877355 - 05/22/13 02:35 AM

Well, after much back and forth I have decided to keep the FS-102 and sell the TSA-120. I have decided that the 18mm jump in aperture was not enough to justify keeping the TSA-120. It was a very tough decision as the TSA-120 is one heck of a scope and I am still kinda regretting having sold it but in the long run I think that the best course of action will be to keep the FS-102 and get a TEC-140 or sell the FS-102 and get an FS-128. I kinda got a bit of aperture fever when I saw the photo of a TEC-140 on a Nova Hitch Mount (I have one coming) and really got excited at getting a bigger scope for it. After a month or so of thinking it over, I have decided to let go and stick to the original plan and keep teh FS-102. If I want a bigger scope, I will get it later in addition to the FS-102 unless I get an FS-128. I need to keep in mind that this was always a grab n go project and if I go too big, it might defeat the purpose. ARGGGG!!!!!!

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Erik Bakker
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Reged: 08/10/06

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Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5877414 - 05/22/13 04:20 AM

Sergio,

What did you see at the eyepiece(s) when comparing your FS102 and TSA120?


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houser23
sage


Reged: 10/26/09

Loc: Rocklin, CA
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5877419 - 05/22/13 04:42 AM

Quote:

Well, after much back and forth I have decided to keep the FS-102 and sell the TSA-120. I have decided that the 18mm jump in aperture was not enough to justify keeping the TSA-120. It was a very tough decision as the TSA-120 is one heck of a scope and I am still kinda regretting having sold it but in the long run I think that the best course of action will be to keep the FS-102 and get a TEC-140 or sell the FS-102 and get an FS-128. I kinda got a bit of aperture fever when I saw the photo of a TEC-140 on a Nova Hitch Mount (I have one coming) and really got excited at getting a bigger scope for it. After a month or so of thinking it over, I have decided to let go and stick to the original plan and keep teh FS-102. If I want a bigger scope, I will get it later in addition to the FS-102 unless I get an FS-128. I need to keep in mind that this was always a grab n go project and if I go too big, it might defeat the purpose. ARGGGG!!!!!!




Wise decision Sergio, the FS is a very desirable scope.


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t.r.
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Reged: 02/14/08

Loc: Upstate NY
Re: Yet another TSA-120!!! new [Re: houser23]
      #5877478 - 05/22/13 07:51 AM

The TEC140 is unique in that it offers so much, for such a small package. I think with the Nova you can pull off grab and go...I did with my old 140 and a CG5!

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chaoscosmos
sage
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Reged: 01/26/13

Loc: Mission Viejo CA
Re: Yet another TSA-120!!! new [Re: t.r.]
      #5877818 - 05/22/13 11:28 AM

Although it gets rave reviews here, you might want to consider if even a Tec 140 will be a significant enough jump for you in aperture. Although there are those who disagree, much conventional wisdom around here seems to be that the best complement to a 4 inch refractor is a 10 inch or larger Newtonian Dob. Even going that far or larger, objects like galaxies still appear as grey fuzzies. Maybe the most noticeable difference is with globular clusters. You would definitely see deeper with a Tec 140, but consider if going from 4 to 5.5 inches would be (relatively speaking) more than just another incremental increase.

Edit: Ah, you already have a 16 inch Zambuto Starstructure!!! So you should be set?


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ichdien
member


Reged: 11/27/08

Re: Yet another TSA-120!!! new [Re: chaoscosmos]
      #5877933 - 05/22/13 12:28 PM

The "best" complement to a 4" refractor will vary according to one's needs. For instance, given my observing conditions, time constraints, and personal preferences a 10" dob or bigger didn't seem a reasonable choice when I wanted something larger than my 105mm apo. I chose a TEC 140 and was happy with the increase in aperture, and when the opportunity came to trade up for an AP 155, I was happier still. With a DM6 and a Rob Miller tripod, the 155 is virtually a grab and go, which suits my style perfectly. My 105 now sits in the corner, waiting for me to take it along when I travel by airplane.

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JimP
Pooh-Bah


Reged: 04/22/03

Loc: South Carolina
Re: Yet another TSA-120!!! new [Re: ichdien]
      #5878403 - 05/22/13 03:43 PM

And now, I have a like-new Tak TSA 120! It just arrived today and is gorgeous, right out of the box. If it is of the same optical quality as the last one I looked through (Perfect star test), I will be very happy. :^)

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crazyqban
Carpal Tunnel
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Reged: 12/16/08

Loc: Miami, Florida
Re: Yet another TSA-120!!! new [Re: Erik Bakker]
      #5879020 - 05/22/13 08:30 PM

Quote:

What did you see at the eyepiece(s) when comparing your FS102 and TSA120?




Very similar, just a bit larger scale. Not as much as I was hoping for. I will tell you though, It is a heck of a nice scope and it was not an easy decision to let it go.


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crazyqban
Carpal Tunnel
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Reged: 12/16/08

Loc: Miami, Florida
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5879026 - 05/22/13 08:33 PM

Jim, I think that you will be very happy. Also, there is a chance that I might be able to score an FS-128. If I do, I might then sell the FS-102 and not worry about getting a larger aperture scope. I think that a Tak FS-128 will be a happy place.

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johnnyha
Postmaster
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Reged: 11/12/06

Loc: Sherman Oaks, CA
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5879110 - 05/22/13 09:26 PM

Quote:

I think that a Tak FS-128 will be a happy place.



I dunno...


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JimP
Pooh-Bah


Reged: 04/22/03

Loc: South Carolina
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5879126 - 05/22/13 09:36 PM

I don't think you could loose going after an FS 128. Those scopes have become very popular (along with it's big Daddy the FS 152) and for good reason!! They are magnificent scopes, especially for visual observations. Good luck!!

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crazyqban
Carpal Tunnel
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Reged: 12/16/08

Loc: Miami, Florida
Re: Yet another TSA-120!!! new [Re: JimP]
      #5879214 - 05/22/13 10:30 PM

I was eying that 152 on astromart but I think that it is going to be too large for transporting it regularly. With the scope guard case it's like 6 feet long!!!

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bobhen
professor emeritus


Reged: 06/25/05

Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5879881 - 05/23/13 10:00 AM

Quote:

Jim, I think that you will be very happy. Also, there is a chance that I might be able to score an FS-128. If I do, I might then sell the FS-102 and not worry about getting a larger aperture scope. I think that a Tak FS-128 will be a happy place.




Mr. Yoshida from Japan gave the Tak 120 and the Tak 128 the same score (73 on his 2010 list) when it comes to “planetary viewing”. The Tak 120 will also be more portable than the 128. I think it’s going to be difficult to get a refractor that offers more performance and will also be as portable as the Tak 120.

Bob


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johnnyha
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Reged: 11/12/06

Loc: Sherman Oaks, CA
Re: Yet another TSA-120!!! new [Re: crazyqban]
      #5879922 - 05/23/13 10:25 AM

Quote:

I was eying that 152 on astromart but I think that it is going to be too large for transporting it regularly. With the scope guard case it's like 6 feet long!!!



Believe it or not, I actually enjoy NOT having to extend and retract the dewshield for every session.


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