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Mint GP-C102

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#1 CHASLX200

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Posted 18 October 2021 - 06:16 AM

Should get it today by Fed EX.  This is a complete mint and almost never used scope with dual axis drives. The seller used it as something to look at and said the people before him just let it sit for around 25 years. This was the last of the good stuff from Celestron from Vixen before Celestron dumbed down to the China stuff in 1997.  I think the GP came out around 1993.

 

I had a GP mount before with after market drives that never worked right a while back.


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#2 mdowns

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Posted 18 October 2021 - 10:19 AM

Do you have any pictures from the seller Charles?



#3 CHASLX200

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Posted 18 October 2021 - 11:11 AM

Yes. I just got it a while ago and post pics tonite. All looks good and it was packed good.  


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#4 CHASLX200

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Posted 18 October 2021 - 05:56 PM

Like going back in time to buy it.

 

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#5 CHASLX200

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Posted 18 October 2021 - 06:10 PM

Mount will work great for other OTA's.  Maybe another FS102 will do the trick.

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#6 CHASLX200

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Posted 18 October 2021 - 06:18 PM

Gonna need the smaller weight for the ST-80.

 

 

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Edited by CHASLX200, 18 October 2021 - 06:18 PM.

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#7 CHASLX200

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Posted 18 October 2021 - 07:44 PM

Does great with a 3.2mm on the double double. Collimation is dead on.  Planets are nice also with a 5mm but seeing has just been bad the last 6 weeks. Moon is bright and not enough color to bother me.


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#8 CHASLX200

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Posted 19 October 2021 - 05:49 AM

Only thing the scope needs is back weight as it is top heavy. Maybe find a 2" focuser that fits and use a heavy 2" diagonal and eyepieces. And maybe add a 8x50 RA finder.  Vixen never let me down yet when it comes to optics.


Edited by CHASLX200, 19 October 2021 - 05:55 AM.

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#9 Paul Sweeney

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Posted 20 October 2021 - 07:40 AM

I am very interested to hear how it performs. I have read reviews that say that the newer China scopes put up the same quality image and have better coatings. They come up for sale here in Germany every so often, but I've never bought one because I'm not sure if it is worth the premium price they ask for.
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#10 Terra Nova

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Posted 20 October 2021 - 08:09 AM

I am very interested to hear how it performs. I have read reviews that say that the newer China scopes put up the same quality image and have better coatings. They come up for sale here in Germany every so often, but I've never bought one because I'm not sure if it is worth the premium price they ask for.

The Omni XLT 102mm F9.8 was quite good. Images were sharp and well contrasted but it was evident it was a achromat. The CA wasn’t a problem for me as I got the scope primarily for solar H-a and C-K observation but the couple of times that I trained it on the planets were enough. I examined a few DSOs and they sere very nice. Nebula were bright, clusters very sharp. I think that was a result of the XLT coatings. The word is that the objectives were hand-selected. I don’t know how true that is but I thought my sample was on par with. Vixen 102 F9.8 achromat in sharpness but a bit brighter. The Omni XLT 102mm F9.8 is a fine alternative if someone is looking for a 4” achromat. The objective cell is collimatable and the 2” R&P focuser with large metal wheels with rubber treads quite effective.


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#11 Jacques

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Posted 20 October 2021 - 10:00 AM

I am very interested to hear how it performs. I have read reviews that say that the newer China scopes put up the same quality image and have better coatings. They come up for sale here in Germany every so often, but I've never bought one because I'm not sure if it is worth the premium price they ask for.

From my experience my Japanese 4"F10 lens has a good deal less chromatic abberation as well as better spherical correction than my former Synta 4" F10. Lens coatings on the Chinese made achromat however are modern multicoatings resulting in a tiny bit brighter images compared to the old Japanese lens. 


Edited by Jacques, 20 October 2021 - 10:01 AM.

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#12 lunardave

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Posted 20 October 2021 - 03:42 PM

I really wanted a Vixen 102 f9.8.

 

At the time I couldn't afford it.

 

So I got a C5+ instead.

 

With Star Bright coatings.


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#13 lunardave

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Posted 20 October 2021 - 03:50 PM

Like going back in time to buy it.

That's the one I wanted. Should have been more of a go gitter, I guess.

 

Stead of workin' in the mill.

 

Go getting = making more money. The smart way.

 

Stead of bustin my *** every day just to buy a TV85.



#14 Defenderslideguitar

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Posted 20 October 2021 - 05:27 PM

I had two  C-102s     both had very good optics   performed very well

My second one was in very nice original condition    the prior owner    a very knowledgeable and respected classic aficionado eventually wished he had it back and I was happy to have held it for him and get it back to him

 

The one Chas just received is original sweet and showroom no excuses     very nice

good show

Here is a pick of my old one on a GP2 mount and Al's Astro tripod

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Edited by Defenderslideguitar, 21 October 2021 - 11:04 AM.

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#15 Bomber Bob

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Posted 20 October 2021 - 05:36 PM

CHAS, if your Vixen is like mine, you'll get 100x per inch out of it on Mars / Jupiter / Saturn & double stars.  Clammy almost bests my Dakin 4 -- and that's saying something!

 

C102 Restore S22 - Meade SF TALL (RS Full).jpg

 

(I hope you'll hold on to your GEM for a while!)


Edited by Bomber Bob, 20 October 2021 - 05:38 PM.

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#16 CHASLX200

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Posted 20 October 2021 - 06:07 PM

I am very interested to hear how it performs. I have read reviews that say that the newer China scopes put up the same quality image and have better coatings. They come up for sale here in Germany every so often, but I've never bought one because I'm not sure if it is worth the premium price they ask for.

My first gen C102 HD and CG4 mounts were a big let down in 1997 vs the Vixen made stuff. I bought the very first CG5 as well and it was about junk also. The optics in the C102 HD had more of a green tint and just was cheaper made.

 

Once the CG4 and 5 got the bigger legs the mounts got better over time around 1999-2000.  Never had a Vixen scope let me down and i have had around 30 i would guess.

 

So far this scope looks like it was stored away for around 25 years or you went back in time and bought it new. Cost $1400 about with shipping on the paper work in 1996.

 

All i know is so far with a 3.2mm the double double was 4 nice round balls.  Only my very top end fracts looked better like my Taks and TMB 105/650.  Them FS78's are hard to beat.  So far color is not too bad vs a 6" F/8 achro on the planets or moon.

 

A 2" foucser would be nice to have.


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#17 CHASLX200

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Posted 20 October 2021 - 06:11 PM

CHAS, if your Vixen is like mine, you'll get 100x per inch out of it on Mars / Jupiter / Saturn & double stars.  Clammy almost bests my Dakin 4 -- and that's saying something!

 

attachicon.gifC102 Restore S22 - Meade SF TALL (RS Full).jpg

 

(I hope you'll hold on to your GEM for a while!)

I needed a mount for diff OTA's so when i saw the ad i jumped.   I can use the ST80 and 90mm Achro on it and  it will be fine for a 6" Mak or even a 8" SCT. Mount is grab in go in one trip.

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Edited by CHASLX200, 20 October 2021 - 06:37 PM.

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#18 nowhere

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Posted 21 October 2021 - 02:39 AM

Like going back in time to buy it.

The GP-C102 is the big "wish I had bought one back then" scope for me. Never quite had the money to go for one. I remember seeing one in the Vancouver Telescope Centre back in the mid 90s when I dropped by to get a replacement for the 9mm Kellner I had dropped on concrete. A man was just finishing the purchase of it for his daughter - she was around 13 or 14 and truly over the Moon with enthusiasm about getting it. Seemed like a great way to get started. 


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#19 Defenderslideguitar

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Posted 21 October 2021 - 08:33 PM

BTW    When I got the C-102FLUORITE  from its original owner   it came with the original Celestron manual.  But when one reads the manual it covered three Celestron refractors at the time   the C-102fl   the C-102  and the C-80     when I offered in a C-102fl thread to send someone a copy     I ended up needing to scan it. I scanned it along with another document or review of the C-102fl    but it occurs to me that if Chas or someone wanted a copy  for their  C-102     all I need is an email and I'll send it out.....


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#20 CHASLX200

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Posted 22 October 2021 - 05:49 AM

BTW    When I got the C-102FLUORITE  from its original owner   it came with the original Celestron manual.  But when one reads the manual it covered three Celestron refractors at the time   the C-102fl   the C-102  and the C-80     when I offered in a C-102fl thread to send someone a copy     I ended up needing to scan it. I scanned it along with another document or review of the C-102fl    but it occurs to me that if Chas or someone wanted a copy  for their  C-102     all I need is an email and I'll send it out.....

Mine covers a C102 ED as well. I don't remember a C102 ED.



#21 Terra Nova

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Posted 22 October 2021 - 07:24 AM

Mine covers a C102 ED as well. I don't remember a C102 ED.

The C 102 ED was the black Celestron-branded Vixen ED102S (F9). Orion sold one under their label as well around 20 years ago.

 

Here’s a pic:

 

https://astromart.co...s-great-polaris


Edited by Terra Nova, 22 October 2021 - 07:25 AM.

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#22 LDW47

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Posted 22 October 2021 - 08:18 AM

I am very interested to hear how it performs. I have read reviews that say that the newer China scopes put up the same quality image and have better coatings. They come up for sale here in Germany every so often, but I've never bought one because I'm not sure if it is worth the premium price they ask for.

I had the C102-HD the Chinese Model that came out about 1996-7 to fill in after  It was an excellent scope  Even Ed Ting had high praise for it as a keeper but unfortunately I sold mine due to lack of use ie  too many scopes, and nothing has changed, lol  PS  Mine had a 2" focuser


Edited by LDW47, 22 October 2021 - 08:23 AM.


#23 LDW47

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Posted 22 October 2021 - 08:25 AM

My next scope was going to be a C102 to go along with my C80 until I finally found an NP101  They are as hard to find as the 101 up here in Canada


Edited by LDW47, 22 October 2021 - 08:26 AM.

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#24 Rutilus

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Posted 22 October 2021 - 04:54 PM

I am very interested to hear how it performs. I have read reviews that say that the newer China scopes put up the same quality image and have better coatings. They come up for sale here in Germany every so often, but I've never bought one because I'm not sure if it is worth the premium price they ask for.

I had a Vixen 102 f/9.8 that I used for nearly 20 years, a nice scope. When I used my

Chinese built Sky-watcher 120mm f/8.3 with a 102mm aperture mask, the views are/were

every bit as good as those seen with the Vixen. 



#25 Paul Sweeney

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Posted 23 October 2021 - 12:31 PM

I also have a Chinese 120 f8.3. I brought it to Wolfgang Rohr for testing. He said that I got a really good one. I've been looking at a Vixen, thinking I might get a sharper, clearer image. So I've been sitting on the fence up until now.


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