VIXEN GP M 102


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Brand and Model:VIXEN GP M 102
Price ($USD):1400
Type:Achromatic Refractor
Attributes: un-checked Go-To un-checked PEC
Aperture:102mm (4")
f Ratio:f/10
Focal Length:1000mm
Finder:6X30
Electric Power:
Mount:GREAT POLARIS
Tripod:
Weight (lbs):lbs.
Dimensions (w/h/d):
Description:BEETWEN 4 INCH ACRHOMAT IS THE BEST

Vote Highlights Vote
VIXEN GP M 102
I've owned the Vixen GP 102 M for quite a while now. It's been a good scope and a cracking mount. Mine was purchased from Orion Optics in the UK. I opted for Orion Optics own heavy duty field tripod over the Aluminum Vixen tripod, which was a worthwhile although costly move.

The GP and 102M marry up very well indeed. If the OTA was any heavier I think it would cause the GP some problems with prolonged damp down times. But it's just right.

The 102M is a nice scope, no getting away from that. But it is an achromat and perhaps doesn't make such good financial sense with the Synta ED100 available. Vixen have done a good job with the coatings, baffling, internal blackening and quality optics. But despite their best efforts the 102M still betrays it's achro origins.
Saturn is surrounded by a faint blue mist, which although not bad, is very apparent. The view in the ED100 shows no detectable chromatic abberation and the view is slightly crisper too. But the view in the 102M is still oh so nice. Plenty of contrast, sharp and detailed. Certainly a nicer view than with my Orion Optics 8" f6 Newtonian.
The other major planets display the same trait. The CA is worse with Venus and Jupiter, which is to be expected. And the Moon displays a violet fringe on its limb.
But all this is to be expected. And 5 years ago that would be fine and we would leave it there. But today the Skywatcher and Orion USA ED100's are available at such good prices and their optics are easily a class or two above the Vixen 102M, that it really render it redundant. Unless you can pick one up secondhand for bargain basement money, go with the Synta produced ED100.....it's far superior!!!!

The GP is a great mount but like the 102M it's getting harder to make a case for it. Especially brand new. With drives, polar scope and tripod, it's price is close to the superior Skywatcher HEQ5 Skyscan Pro. Again it makes far more sense as a secondhand buy.

Overall Rating: 8
Optics:8 Mount:8 Ease of Use:7 Value:5
Weight: 20 (Notable Vote)
Date:
By: Rustiebin
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=548015

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I fully agree with the review.
I own a 1988 Vixen 102M and it is exactly as described, despite I never compared it face-to-face with other refractors of the same diameter.
I think I'll keep it as a guide scope for my future OTAs.

VIXEN GP M 102
Very nice for planetary observation. The GP-D mount is easy to use and durable (although some may argue, esp the aluminum legs)

Overall Rating: 8
Optics:7 Mount:8 Ease of Use:10 Value:10
Weight: 5 (Veritable Vote)
Date:
By: patlau2
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=153665


VIXEN GP M 102
sharp contrast. dark background. light-weight tube. dumbell looks great. m 13 partially resolves. m 57 a nice clean donut.
red-spot and festoons on jupiter seen. only drawbacks: some slight color on venus and sirius, and no 2" focuser.

Overall Rating: No Vote
Optics:9 Value:9
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.137.142)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=356091


VIXEN GP M 102
I bought this scope after owning / using several other telescopes: Meade ETX-90, Meade ETX-105, Synta-made 4.5" Newtonian and a short-tube 80f5. I also had a chance to have a quick look through a Synta-made 120mm f/8 refractor. The Vixen is much, much superior to any of the scopes listed above. The optics are very sharp, excellent contrast, very little color (much less than the Synta refractors), and significantly brighter and sharper than the Meade ETX-105. The mount is solid and very smooth, again much better than Meade and Synta. This scope is also much easier to use due to high quality mechanical execution, good optics and good ergonomics. The Vixen Lanthanum eyepieces are very comfortable to use thanks to their long eye relief - people who are not used to look through telescopes find them very easy to use. Net, I am very happy with this scope - it is definitely a keeper. My only "complaint" is the price - at least here in Europe you can get two 120mm Chinese refractors for the same amount of money.

Overall Rating: 9
Optics:9 Mount:9 Ease of Use:9 Value:7
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.207.125)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=266939


VIXEN GP M 102
Robusto, fiable y con una montura de muy buena solidez. La optica es más que correcta.

Overall Rating: 9
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.147.147)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=39229


VIXEN GP M 102
Big enough to see most objects, stable enough to use for basic CCD, small enough to be car transportable (just) and of course the optics are superb (for the price).

The 102mm is perfect, small enough to be easy to set up and start using but big enough to be useful. I still prefer the 10" f6 newtonian I own but then again I hardly ever look through it cus its to dam heavy to lug out into the garden. If you want a semi transportable refractor get this and save thousands on overrated OTA only systems (ie Tak and Televue), or if you want a serious scope get a high quality reflector

Overall Rating: 9
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.77.5)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=39228


VIXEN GP M 102
this vixen 4" ach provide wonderful views in planets and deep sky objects. n. Very high contrast, with the chromatic aberration is minimal. side by side comparsion of this vixen 4" with a celestron c8 showing c8 is only brighter but not as details. the LV eps are very good. you have to replace the supplied star diagionals into mirror type .. highly recommended!!!

Overall Rating: 9
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.170.233)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=39227


VIXEN GP M 102
A very good scope for an achromat. Only down side is that you can't push the magnification much past about 170x without the image getting mushy. Lower power views are quite crisp with a minimal amount of chromatic aberration. Knocks the socks off the lower cost Chineese versions, but of course costs more.

Overall Rating: 8
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.40.54)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=39226


VIXEN GP M 102
Forgot to vote the first time. A solid 10, period.

Overall Rating: 10
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.167.210)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=39225


VIXEN GP M 102
This is a very nice telescope and mount for its price. It is an Achromat, so it shows color on the planets, the moon and bright stars. Resolution and contrast are very good. Startest shows small amount of spherical abberation. Views of double stars, globular and open clusters are excellent. The mount is very stable for this telescope. It dampens in about 1 second. A better tripod should reduce this further. I replaced the prism diagonal with a TeleVue mirror diagonal, added a Telrad finder and the Vixen motor drive. Altogether this is a very nice setup.

Overall Rating: 9
Weight: 1 (Unreliable Vote)
Date:
By: Anonymous (xxx.xxx.35.60)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=39223

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