jack45
Post Laureate
Reged: 07/07/03
Posts: 3098
Loc: Lacey WA
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I have three:
Tele Vue 2x Big Barlow
Orion Shorty-Plus 2x barlow
Orion 3x Barlow
Clear Skies!
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Discovery 16"f/4.5, XT12"Orion F/4.9 & Discovery 12.5"f/5.0
Edited by jack45 (06/09/08 10:05 PM)
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naglertized
Carpal Tunnel
Reged: 01/10/07
Posts: 1516
Loc: Jacksonville Florida
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One, TAL Optics (Russian) 2X shorty.
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Clinton
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Keith
sage
Reged: 05/14/05
Posts: 467
Loc: Costa Mesa, CA USA
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somebody get me a straightjacket, I just counted 12!
TV 2x 2" powermate (recent aquisition, and sold my older TV BIG barlow right after)
TV 3x and 2x 1.25" (casualties of the 13% sale)
Antares 1.6x 2"
Celestron ultima 2x
OPT/GSO 2x 2" ED
OPT/GSO 3x 1.25" ED
OPT/GSO 2.5 and 5x 1.25" triplets
OPT/GSO 1.25" basic 2x shorty
Meade #124 (first ever, still works great, all beat up!)
Meade #140 (wasn't impressed, but kept it to match my 4000 SP smooth set).
Notable barlows I used to own, the aforementioned TV BIG 2x, knight owl 3xED, antares 3x (ultima like) and a 2nd Ultima. I sold the extra ultima and the 3x to justify the TV 2x and 3x sale. also had a 3x plastic gallileo, but I gave that one away as a freebie.
Admittedly, working at OPT, I had to grab all of the basic OPT/GSO ones, and the 2.5 and 5x triplets when they first came out, I havent used them much. Its nice to have extras for outreach and star parties. I find that the 2" GSO ED worked almost as well as the BIG barlow. The 3x ED is a sleeper, 85-90% of the TV 3x for 40% of the price (but not quite as much of a work of art). The simple shorty works wonders when you just thread its lenses into the 15mm superview, that particular combo is my outreach supreme eyepiece, well corrected 125x widefield in the 10"dob, great for globs, planets and doubles, it just happens to match up well... not so with the 20mm, so maybe it was a fluke.
The new triplets I havent used much, so if anyone wants them, shoot me a PM and take me back down to 10!
Keith
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Cats (tubes): C11xlt, 8"Meade"R", Orion Apex90
APOs: TV101, Pronto(semi-apo)
Solarmax 60/bf10
ACHROS: C102, Nexstar 80GTL
Mounts: CG11G, CG5-RA, SV M3
ST7XME, Pixcel255
Optec IFW, DSI/LPI
Nikon 8x40 EX, Zhumell 20x80, Japan prototype 8x56
recovering eyepiece junkie
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Richard Low
professor emeritus
Reged: 11/27/05
Posts: 646
Loc: Singapore
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Just two: TV 1.8x and TV 2.5x.
I previously used the Celestron Ultima 2x and TV Big barlow.
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Richard Low
15" f/4.5 Zambuto (DIY), APM/LZOS 6" f/8 Triplet (DIY)
ZAO-IIs, Supermonos, XOs, XWs, Ethos, Leica ASPH Zoom
Roundtable Eq. Platform, Denk II PxS, Nikon Monarch 10x42
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WRose
Pooh-Bah
Reged: 07/08/05
Posts: 1353
Loc: Colorado, USA
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Not to worry Keith, I've got the Straight Jacket. 
Some years ago I got interested in comparing Barlows, Telenegatives, etc. Since I tend to hang onto equipment for future comparison and I've been at this for a few too many years, I have acquired several. Then there's the Clave I've acquired to compare too. 
0.965"
Takahashi 2x, 24.5mm
Vixen 3x, 24.5mm
Meade #134 2x, 24.5mm [as Kieth said, "still works great,"]
No Name 2x, 24.5mm (Made in Japan - Decent optics)
2x 'Smythe' lens screws into 24.5mm eyepieces.
1.25"
Meade RG 2x, 1.25"
Meade 2x -3x Variable, 1,25"
Celestron Silver Top 2x, 1.25"
Celestron 2x, 1.25" (Made in Japan - Decent optics)
Celestron 2x Shorty, 1.25"
Celestron Ultima 2x, 1.25" Long
Vixen 2x, 1.25"
Dakin 2.4x, 1.25" (Brass, goes with Brandon Brass EP set)
Gailand 2x, 1.25"
TV PowerMate 2.5x, 1.25"
TMB ED 1.8x, 1.25"
Zeiss Abbe 2x, 1.25" (original Zeiss)
Zeiss/Baader 2x, 1.25"
Clave 1st Generation 2x (Chrome) 29mm
Clave 3rd Generation 2x (Steel) 27mm
Clave 3rd Generation 2x (Steel) 29mm
Clave 3rd Generation 2x (Steel) 1.25"
Clave 3rd Generation 2x (Delrin) 2 Each 1.25"
Clave by Kinoptic 3rd Generation 2x (Delrin) 1.25"
No Name 2x, 1.25"
No Name 2x Shorty, 1.25"
2"
Anteres 1.6x, 2"
University Optics 2x, 2"
Astro-Physics 2x, 2"
Astro-Physics BARCON
TV Big Barlow 2x, 2"
TV PowerMate 2x, 2"
TV PowerMate 4x, 2"
Clave 2x, 2"
recently traded:
Celestron Ultima 2x, 1.25" Shorty (SV Series) [Traded it several months ago.]
Takahahi 3x, 1.25" [Traded 3 months ago]
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As always, YMMV or more likely, YMWV [ Your Mileage Will Vary! ] 
Clear Skies, Bill
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L. Morgan
sage
Reged: 12/14/06
Posts: 216
Loc: Texas Cross Timbers
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Four: An Orion shorty +, Meade 2x, TV2.5x and a 2" WO. They Shorty and the TV are the ones I use the most.
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Clive Gibbons
Mostly Harmless
Reged: 05/26/05
Posts: 16724
Loc: Oort Cloud
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Hey Bill...
If ya stacked 'em all together, what would the power be?  
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A few telescopes of dubious value.
Understanding wife and two curious cats.
"Semper ubi sub ubi"
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phanfave
Carpal Tunnel
Reged: 08/21/06
Posts: 1755
Loc: Pioneer Valley
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Four...
2X and 4X 2" Powermates
TV 3X barlow
Celestron 2X Ultima
And I use them all. :-)
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rick rian
Seeker of Truth(s)
Reged: 08/03/04
Posts: 36060
Loc: Upper Mid West
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Quote:
Hey Bill...
If ya stacked 'em all together, what would the power be?
I have three:
Baader 2x VIP 2"/1 1/4"
Televue Powermate 2.5x 1 1/4"
TMB 1.8x 1 1/4"
Also a Denk S2 power x switch diagonal, good for cyclops or bino use. 
Still looking for a good deal on a TV 4x ...
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Rickster
Scopes: C8, TV85
Mounts: NexStar 8i mount (w/ Ray's Bracket) on HD tripod, Losmandy GM-8, Helix Hercules Single-Arm Alt/Azm Mount w/ Oberwerk wood tripod
EPs: UO, TMB, TV, Baader
He who knows best knows how little he knows.
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Rich N
Post Laureate
Reged: 09/22/04
Posts: 5618
Loc: San Francisco Bay Area, Calif...
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Five or six barlows.
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mttafire
Pooh-Bah
Reged: 02/02/06
Posts: 1114
Loc: midwest
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none, sold them (it) about 6 months ago.....
Binos only now... 
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God Bless America
Binocular astronomy
for me ONLY.
8x45 Garretts
15x70 Skymasters
2 eyes!
Edited by mttafire (06/10/08 12:10 PM)
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Greg K.
Reged: 12/11/03
Posts: 17634
Loc: Clifton Park, NY
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Kinda hard to use them with binoculars, I imagine.
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Astro-Tech AT111EDT f/7 | AT72ED f/6 | Celestron CGEM
NexStar 11 GPS | Orion SkyView Pro 8EQ (w/ Autostar mod)
Canon EOS Rebel T2i (modded) | QHY5L-II mono
astrophoto gallery
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mttafire
Pooh-Bah
Reged: 02/02/06
Posts: 1114
Loc: midwest
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Quote:
Kinda hard to use them with binoculars, I imagine.
I owned one when i had my dob.
I felt that barlows were not the way to go. (too much glass)
I prefered using the appropriate eyepiece to acheive that given magnification.
I bought one thinking id use it...I really didnt.
I actually sold it BEFORE i sold the scope.
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God Bless America
Binocular astronomy
for me ONLY.
8x45 Garretts
15x70 Skymasters
2 eyes!
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viperbob
scholastic sledgehammer
Reged: 08/20/07
Posts: 770
Loc: New Jersey
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Just one, the Orion Shorty plus, but I almost never use it. Pain in the dark sometimes, but thinking of getting a TV 2x or the 2.5x.
VB
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VB
40 25'N 74 11'W
8x40 Nikon Action
Nagler 12mm Type 2
Nagler 20mm Type 2
Televue Plossl 25mm
Panoptic 27mm
Zhumell Wide Field 30mm (2 Inch)
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DeepSpaceTour
Post Laureate
Reged: 10/25/05
Posts: 3164
Loc: In the dark and"WAY"out there!
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I have two most excellent barlows both are 2" they are the TV 2X Big Barlow,and the Antares 1.6X barlow,neither of them impart any image degradation "AT ALL"!!...highly recommended!!
Clear skies.
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Bill
-17.5"F/5 Discovery TD /Dob driver/ArgoNavis
Kendrick dew control/Obsession Alt bearings
-Antares 152-F/6.5 refractor on HEQ-5 Pro
-25x100 Binos
-15x70 Binos
-Collimating tools "LOTS"
- TV ep's *13-Ethos *31T-5*
- 2" Barlows
- Pelican1600
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Luigi
Postmaster
Reged: 07/03/07
Posts: 5317
Loc: MA
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I own one but use none. I don't like fiddling with them. Short focal length long eye relief EPs generally incorporate their own barlow.
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17.5" f/5 Dob. IM-715 MCT. 120ED. Lunt 60mm Ha.
Zeiss, Leica, Fujinon, Nikon, Pentax, Bushnell bins
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Jim Romanski
Carpal Tunnel
Reged: 01/02/05
Posts: 2091
Loc: Guilford, Connecticut
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I currently have 3:
Televue 2" 2X Powermate - I use this one a bunch
Galoc 1.5" 2X Barlow - I use this once in a while.
Galoc 1.5" 2X Barlow (Lens Only) - this one goes into the focuser tube of the Cave so I only use it with that scope.
Over the years I've given away some cheap barlows such as the Orion Shorty and a Meade #140. I've given away scopes with a couple of eyepieces and usually include a barlow in the deal.
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Jim
17.5" Dob "Beta Version"
13.1" Coulter
8” Cave
NP 127 on a CG-5 and CGEM DX
25x100 and assorted other binos
Naglers, Ethos and various others.
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Herenomore
Carpal Tunnel
Reged: 11/29/04
Posts: 1833
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Televue 2.5X Powermate and Orion Shorty-Plus 2X Barlow
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o1d_dude
o1der than dirt
Reged: 10/03/07
Posts: 2534
Loc: The Wolfpack
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I have only the Televue 2x and like it very much. The parfocalization is superb.
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Kit
'Don’t worry about what telescope you own, or its quality. Just get out under the night sky, and enjoy God’s wondrous universe.' - Thomas M Back
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John Huntley
professor emeritus
Reged: 07/16/06
Posts: 547
Loc: South West England
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I've used a Celestron Ultima 2x for a couple of years now and it's been a very good performer in a variety of scopes. It's now been joined by a Tele Vue Powermate 2.5 x which is superb but I can't bring myself to part with the Celestron so I have 2 now.
John
SW England
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Orion Optics (UK) 12" F/5.3 SPX Dobsonian
Skywatcher ED120 Pro 4.7" F/7.5 ED Refractor
Vixen ED102SS 4" F/6.5 ED Refractor
Ambermille Aztech Heavy Duty Alt-azimuth mount
Skywatcher AZ-4 Alt-azimuth mount
Naglers, Ethe and Pentax XW's
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