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Equipment Discussions >> Refractors

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123456
sage
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Reged: 11/05/06

Loc: mid tenn
any info on the vixen ED102S new
      #4765404 - 08/23/11 11:34 PM

vixen ED102s f/9
thinking about picking one of these up.
the cost is more then say a used orion ED100
and its about a 10 year old OTA but what little i can find about it

sounds good ... basically great optics but *BLEEP* focuser !
suppose to have Japanese optics

" need input"


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Richard McC
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Reged: 12/31/04

Loc: Australia
Re: any info on the vixen ED102S new [Re: 123456]
      #4765600 - 08/24/11 03:13 AM

Need more specific questions I have one and I like it as a small scope. The rack and pinion focuser is OK but it is certainly not a FeatherTouch. It struggles at high elevations with binoviewers (need to increase the focuser friction enough that fine focusing becomes harder) but in normal usage (diagonal and single eyepiece) I find it good enough that I've not spent the money required to replace it. The fit and finish on my ED102S is a step up from where most Chinese scopes were a few years ago (I've previously owned a few Synta OTAs) but I've not looked closely at their latest products to compare. If you have any particular questions that you'd like to ask I will try to answer them.

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123456
sage
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Reged: 11/05/06

Loc: mid tenn
Re: any info on the vixen ED102S new [Re: Richard McC]
      #4766159 - 08/24/11 12:07 PM

the big question ! its all about the glass ...everything else can be tweaked

how does the optics on the vixen compare to the newer synta ED100s?

are the Japanese optics of 10 years go that much better ?



thanks


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dscarpa
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Reged: 03/15/08

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Re: any info on the vixen ED102S new [Re: 123456]
      #4766745 - 08/24/11 04:17 PM

There is a used Vixen 100mm F8.5 ED at OPT for $600. David

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123456
sage
*****

Reged: 11/05/06

Loc: mid tenn
Re: any info on the vixen ED102S new [Re: dscarpa]
      #4766856 - 08/24/11 05:11 PM

i seen that one too but its still just a synta ED100 f/9

its still not a bad price and i bet its a good SCOPE

but im still back to the same question

is the ED102S the better of the 2 ?

joe


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watcher
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Reged: 11/21/07

Loc: St. Louis, MO
Re: any info on the vixen ED102S new [Re: 123456]
      #4766935 - 08/24/11 05:59 PM

Quote:

i seen that one too but its still just a synta ED100 f/9

its still not a bad price and i bet its a good SCOPE

but im still back to the same question

is the ED102S the better of the 2 ?

joe




From what I've seen written about the the Synta 100ed's, you would be hard pressed to find better.


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Richard McC
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Reged: 12/31/04

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Re: any info on the vixen ED102S new [Re: 123456]
      #4767579 - 08/24/11 11:16 PM

Quote:

the big question ! its all about the glass ...everything else can be tweaked

how does the optics on the vixen compare to the newer synta ED100s?

are the Japanese optics of 10 years go that much better ?




The optics on my Vixen show no large amounts of over/under correction and no gross zones (I'm not good enough with the star test to talk about small amounts). The focus is sharp and the contrast is good. Optically, the ED80 I once owned (an early example from the second shipment Orion brought into the USA) was identical as far as I could tell excepting for the obvious advantages of the Vixen's additional light grasp and resolution. I would guess that the unit to unit variation in the Japanese (Optron like the fuorite model?) made Vixen is less than the ED100. However, I also suspect that for most purposes a decent ED100 sample would not be noticeably different to the Vixen. I cannot state this definitively because I have never looked through an ED100 (let alone a decent size sample) but I will note that `slow' 80mm and 100mm ED doublets are at the easy end of the manufacturing scale so they should be much easier to make well than fussier designs like a Petzval or fast triplet. How do you like your SW120ED? If you are happy with that then an ED100 should be similar modulo the differences caused by aperture.


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123456
sage
*****

Reged: 11/05/06

Loc: mid tenn
Re: any info on the vixen ED102S new [Re: watcher]
      #4767601 - 08/24/11 11:32 PM

i had the orion ED100 when they first came out and it was a great ota
wish i never let it go . sold it and got the ED120 .
i really didnt see a lot of gain in the 120 but i kept it ..its cool
just a little brighter .
I will add the ed100 took as much power as the ED120
both would eat up eyepieces !

the vixen ed102 is to be a grab in go setup .. its just that used its as
much as a new ED100 so are the japanese optics from the late 90s
as good as the syntas of today
i was told its like the televue 102 , which shows to be a step up
from the syntas EDs


the problem it seems is there is not that many of the vixen owners
around .....


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Richard McC
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Reged: 12/31/04

Loc: Australia
Re: any info on the vixen ED102S new [Re: 123456]
      #4767675 - 08/25/11 12:23 AM

Quote:

... so are the japanese optics from the late 90s
as good as the syntas of today
i was told its like the televue 102 , which shows to be a step up
from the syntas EDs


the problem it seems is there is not that many of the vixen owners
around .....




I'd be amazed if the Vixen's optics weren't as good as a current ED100. It's whether they are noticeably better than a decent ED100 sample that I am far less sure about.

You are correct about Vixen ED/FL scopes being fairly uncommon outside of Japan. I think most people outside of the home market (especially in America) paid the relatively small premium for a Tak or TV scope or saved a significant amount of money and bought an achromat instead which left the Vixen ED/FL scopes `lost in the middle'.


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john baars
newbie


Reged: 04/11/11

Loc: Netherlands,Schiedam
Re: any info on the vixen ED102S new [Re: Richard McC]
      #5643865 - 01/26/13 07:01 AM

I am a bit late with my reaction, am I not? Reason is I was far too busy observing with my Vixen ED102S. P/V: 1/10 Lambda wavefront, Vega shows a barely visible small deep violet halo. No other color fringes visible. Shows better contrast and details than my C8, lately I observed simultaneously Jupiter with another observer using a C11; I told him what to see. Better than a Synta?
John, Netherlands


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JS999R
super member


Reged: 12/07/11

Re: any info on the vixen ED102S new [Re: john baars]
      #5649650 - 01/29/13 02:34 AM

I feel the same about my Orion by Vixen 102 achromat, the brother of the ED and Flourite models. Many have said even the achromat's optics are excellent and you'll be hard pressed to tell the view apart from either the ED or Flourite. There is slight color on the most brightest stars, but no image degradation. It took a while to even detect it on the Moon until one night I saw a slight hint of yellow on the limb. The views are outstanding through the scope, it shows better pinpoint stars than my AR152 or CPC1100.

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Jon Isaacs
Postmaster
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Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: any info on the vixen ED102S [Re: JS999R]
      #5649763 - 01/29/13 06:58 AM

Quote:

I feel the same about my Orion by Vixen 102 achromat, the brother of the ED and Flourite models. Many have said even the achromat's optics are excellent and you'll be hard pressed to tell the view apart from either the ED or Flourite. There is slight color on the most brightest stars, but no image degradation. It took a while to even detect it on the Moon until one night I saw a slight hint of yellow on the limb. The views are outstanding through the scope, it shows better pinpoint stars than my AR152 or CPC1100.




The toughest tests I know:

A quick look at Venus generally will bring out the false color in most any scope if it's there to be seen.

Another test is using high magnifications during the day, 100x is sufficient. Then choose a High contrast object like the shadow side of telephone pole against a blue sky are good for showing false color.

Jon


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