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#4326 Bowlerhat

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Posted 06 August 2020 - 09:01 PM

Is the FC76D extension unit (Meant for the FS60CB extension)possible to be used as a stand alone unit? I've seen the FC76D as a set, I assume it's similar system? or is it different configuration between extension unit and OTA set? 



#4327 M44

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Posted 06 August 2020 - 09:36 PM

Is the FC76D extension unit (Meant for the FS60CB extension)possible to be used as a stand alone unit? I've seen the FC76D as a set, I assume it's similar system? or is it different configuration between extension unit and OTA set? 

Yes. It can be used. I built one when I had my 76. You need FS-60CSV (short version) which is 105mm in length. I used this SV tube and Feather touch 2" focuser and adapter. It was very light weight.



#4328 Bowlerhat

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Posted 06 August 2020 - 09:52 PM

Yes. It can be used. I built one when I had my 76. You need FS-60CSV (short version) which is 105mm in length. I used this SV tube and Feather touch 2" focuser and adapter. It was very light weight.

I see, I think I have a chance to get just that unit, because I missed out on FS60C. But it'll be interesting to use it alone as a frac unit itself.



#4329 Nippon

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Posted 07 August 2020 - 07:09 PM

 

 

 

In the background the TSA-120N...

 

The tube section behind the 100mm lens cell is necessary to avoid vignetting due to the 95mm main tube.

 

Same reason the TV85 has the cell design it has to make it work with a 76mm tube. Doesn't leave much of the dew shield on dew patrol.



#4330 25585

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Posted 08 August 2020 - 07:35 AM

While that makes OTAs lighter, I prefer matching aperture & diameter tubes.



#4331 YAOG

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Posted 08 August 2020 - 11:36 AM

I agree, bigger tubes generally give better contrast all things being equal. But of course a bigger tube will not really be equal because you can make deeper baffles with a bigger tube which improves contrast up to the point that the optics are capable. 


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#4332 Tyson M

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Posted 18 August 2020 - 06:17 PM

20200818_001702.jpg

 

Had an amazing night out last night with the TSA102S from a yellow zone darksite.  I was originally planning for strictly planetary viewing (yes even though I went to the dark site).

 

At first, hitting up some of the summer favorite soon to be lost on the horizon, M8 lagoon, along with Sagittarius star cloud M24, a globular found serendipitous M54.  Curiously I missed Trifid or didn't note it. M24 was likely the best view here, but I noted how much nicer this looks with a wider fov.  I was using the 55 plossl and 30 UFF.

 

I worked my way up to Swan and Eagle (with the UHC filter).  Swan shape barely apparently, Eagle merely a nebulous cloud.  These nebula targets respond well to larger apertures.

 

I thought to myself, this is why you cant have a 4" as an only scope, and how I bought this for lunar and planetary views.

 

I checked out Wild Duck cluster, a personal favorite.  Looked great in the Noblex 12.5mm.

 

I observed Jupiter first. Not great.  A couple bands at best, a third one trying to make itself known but not really sticking around.

 

Saturn was not much better, struggled to get Cassini.  I checked CSC and indeed seeing was listed as average(more like poor with average seeing moments) and transparency above average.  So I shifted my observing to some favorite DSO's.

 

Here is where I really started enjoying the night.  Hit up M13 and M92, both of which are actually quite well resolved in a 4", which surprised me.  Most globulars are only smudges of light but a 4" starts to busts these two apart.

 

Hit up Alberio a usual favorite, M57, ring shape apparent and looking great.

 

The Veil nebula with the OIII filter and 55 plossl was amazing.   I just see 3 sections, East and West showing up the best but NGC 6974 or pickerings triangle on the edge of detection.  Knotty structure alowly more apparent the longer you looked and with averted vision, particularly with the Eastern side. 

 

Observed M31, looked best in the 30UFF over the 55 plossl for the darker sky background. 

 

Barely on the edge of perception, caught M33.

 

Starhopped from 7 star row to M15 up from Enif. A globular smudge.

 

Observed Almach, seeing barely able to support the Noblex with 1.8x TMB ED barlow.  Vixen HR's didnt pull through here. One of my favorite targets nonetheless.

 

Mars was basically a write off as well.  Thought I saw hints of a polar cap a few times, that's about it.

 

double cluster was stunning in both the 55mm and 30mm.  Same with Stock 2. 

 

Spent some time in Cass, spending a decent amount of time with NGC 663 and M103.  The former being more grand and occupied than the latter fan shape of stars.

 

Owl cluster looked great.

 

I split Archid, love this pair with the reddish secondary.  

 

Took some more time with Carolina's Rose.  This is some ppl's favorite observing target, and I must admit while it is good, its not grand here.  The faint cluster in the sea of stars barely shows up, perhaps better in larger apertures which I revisit. 

 

All in all a great 3 hour session. No signs of incoming dew (a rare treat), and bugs not terrible. 

 

The TSA102S is an optic that continues to provide me joy and excel in areas I didn't anyways plan or expect. 


Edited by Tyson M, 18 August 2020 - 08:32 PM.

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#4333 desertlens

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Posted 18 August 2020 - 10:08 PM

Compact, Classical & Capable:

 

FOA60dsv.jpg

FOA-60, DSV-M


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#4334 StarDust1

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Posted 19 August 2020 - 04:30 PM

Mewlon 180c, TEC140ED and FS-102NSV in action. 

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Edited by StarDust1, 19 August 2020 - 04:31 PM.

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#4335 Nippon

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Posted 19 August 2020 - 06:39 PM

So how did those three beauties compare?



#4336 YAOG

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Posted 19 August 2020 - 07:28 PM

So how did those three beauties compare?

I think they all were great but based on observing with the TEC140 my guess is the FS102 was lagging behind the TEC140 and Mewlon 180C and the competition was tight between the TEC and Mewlon. Which one of them won probably came down to conditions and if the Mewlon had enough time to cool.  



#4337 sw196060

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Posted 19 August 2020 - 09:08 PM

I viewed through a TEC140 and a TOA130. 
the TEC was better visually on Jupe and Saturn



#4338 Nippon

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Posted 20 August 2020 - 02:55 PM

I have always had great respect for Takahashi telescopes. A few months ago I sold my Celestron Edge 8 and bought a Mewlon 180 C. Not that the Edge was a bad scope it was not I just wanted more from my "big scope." My small scope is a Vixen ED 103s. It is not my intention to ruffle any feathers but in the 4" refractor area the Vixen, at least mine, is an exceptional scope so I've never felt any necessity to sell the ED103s and replace it with an FC 100. But my hopes for the Mewlon 180's advantage over my Edge 8 appear to have payed off. Stars in the Mewlon look like stars in a refractor. I had a night of very good seeing last night and the views of Saturn and Jupiter in the Mewlon were just etched for fairly long periods as opposed to the usual fraction of a second where you see incredible detail and wonder did I imagine that.


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#4339 Tyson M

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Posted 20 August 2020 - 09:03 PM

I have always had great respect for Takahashi telescopes. A few months ago I sold my Celestron Edge 8 and bought a Mewlon 180 C. Not that the Edge was a bad scope it was not I just wanted more from my "big scope." My small scope is a Vixen ED 103s. It is not my intention to ruffle any feathers but in the 4" refractor area the Vixen, at least mine, is an exceptional scope so I've never felt any necessity to sell the ED103s and replace it with an FC 100. But my hopes for the Mewlon 180's advantage over my Edge 8 appear to have payed off. Stars in the Mewlon look like stars in a refractor. I had a night of very good seeing last night and the views of Saturn and Jupiter in the Mewlon were just etched for fairly long periods as opposed to the usual fraction of a second where you see incredible detail and wonder did I imagine that.

I have always been keen to try the 180C, it just seems like an amazingly portable, quality large aperture optic.


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#4340 Nippon

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Posted 20 August 2020 - 09:50 PM

You should scratch that itch my Canadian brother, I was born in Ottawa. I bought the Mewlon because I hoped it would have great figure and polish and also still be small enough to have those pin point stars on most nights that my ED 103s has almost every single night. And it really does do that. Plus it has the light grasp and resolution of a 7" scope. So on average nights on planets the 103 and the 180 Mewlon don't seem far apart. But if the seeing is exceptional the Mewlon really shows that 3" aperture advantage. Deep sky targets the Mewlon is just incredible because of the 7" aperture and all the efforts Takahashi takes to maximize the contrast of an obstructed optical system. If there was ever a mirrored telescope that could be the user friendly versatile stand in for the 4" APO refractor it's the Mewlon 180. But you'll have to budget an FC76 or FC100 for those really wide field views. Mewlons are not Milky Way sweepers:) 


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#4341 rfic1

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Posted 22 August 2020 - 07:00 PM

My Takahashi TS80 semi apo riding on a EM-1 mount.

The EM-1 was not sold with the TS80 but it’s the best I could do.

The TS80 has exceptional optics, built like a tank, very smooth focuser and a great 30mm finder. Very happy with this scope. Only disadvantage is I have not been able to use any 1.25” eyepieces with a diagonal as I need just a tad more infocus.  I guess I’ll need to settle using my Pentax SMC ortho'ssmirk.gif

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#4342 zsb04

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Posted 22 August 2020 - 10:02 PM

Nice, another em-1! Here's mine, love it for its simplicity. I think it might be overloaded with the fs-102 but what do you guys think? I have to use the 7.7 lb and 2.1 lb counterweights to achieve balance.

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#4343 rfic1

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Posted 23 August 2020 - 08:36 AM

I think you will be ok with the FS102 on the EM-1.

I will say the 80mm f/15 did vibrate more that I expected with focusing. Not due to the weight but the long length. 



#4344 25585

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Posted 24 August 2020 - 06:12 AM

Just a hedzup that a new EM200 mount, the Temma 3, has been introduced by Takahashi. See Mounts forum. 



#4345 coopman

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Posted 24 August 2020 - 04:41 PM

No point in my looking because I know that it is beyond my means.



#4346 Bowlerhat

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Posted 25 August 2020 - 04:55 PM

I ended up getting FS-60NZ-or a part of it. Anyone knows whether the parts of FC-60/ FS-60 are compatible?

 

21

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#4347 Deadlake

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Posted 26 August 2020 - 10:35 AM

I'm very interested in buying this mount and tripod, along with a FOA-60Q, just as you have.  It would be the perfect grab and go and travel setup for me.  Which model of Berlebach and which adapter is it?

 

I wonder if the Sightron tripod that Astro Hutech sells with the mount would be a good choice?  What do you think? 

 

https://astrohutech....ber-tripod-set/

 

Reports on the Sightron are a lack of dampening, the load capacity is also suspect and not a very high mount (from memory 90 cm). The Report 212 or Gitzmo tripods are the best/most popular route.


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#4348 TerryWood

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Posted 29 August 2020 - 02:59 PM

I just received an FS-60C! Man, these things are really nice and seem to gather more light than a 60mm should! What surprised me is that it seems to love Ethos eyepieces. Looks kind of strange that way, but the view is great. The Brandons are a better lightweight fit, but the expansive, enlarged view through the Ethos is fantastic. Can't wait to turn it on the Moon!

 

V/R

 

Terry

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#4349 Nippon

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Posted 29 August 2020 - 04:24 PM

My Takahashi TS80 semi apo riding on a EM-1 mount.

The EM-1 was not sold with the TS80 but it’s the best I could do.

The TS80 has exceptional optics, built like a tank, very smooth focuser and a great 30mm finder. Very happy with this scope. Only disadvantage is I have not been able to use any 1.25” eyepieces with a diagonal as I need just a tad more infocus.  I guess I’ll need to settle using my Pentax SMC ortho'ssmirk.gif

I have seen photos of the tripod on your EM-1 and have wondered why the bottom section of the legs are white. Are they wood or aluminum?



#4350 waso29

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Posted 29 August 2020 - 04:43 PM

Takahashi had produced wood tripod legs with the lower section painted in white.

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