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SyedRaza
The Milky Way Resident
Reged: 11/17/08
Posts: 117
Loc: The Milky Way
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Hi
I have posted the same question in the beginners forum, I guess nobody knows the answer. If I replace an 8" SCT's 1.25" diagonal with a 2" one, and want to use a binoviewer, which should I get? The celestron has not mentioned if their binoviewer is 1.25" or 2". Another one was william optics' but was 1.25" .
In short, I want to see through 2" eyepieces ( and want to see through binoviewers as well ). Could anyone please recommend a binoviewer name ?
Thanks
Syed.
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Syed
Another Astrophile
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rick rian
The Lockster
Reged: 08/03/04
Posts: 20816
Loc: Upper Midwest
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If you want to use 2" Eye Pieces, the only model on the market that I know of is made by Siebert Optics.
I hope this helps.
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Rickster
NexStar 8i
TV85
Canon 15x50is Bins
Quondo omni flunkus mortati
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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 14611
Loc: Cumberland, R I , USA42N71.4W
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$2000 just for the binoviewer. no small price to pay.
edz
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Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
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ibase
Pooh-Bah
Reged: 03/20/08
Posts: 1454
Loc: Manila, Philippines 121*E 14*N
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Also using a 2" diagonal/eyepieces on the 8" SCT with a William Optics binoviewer; just put on the 2-1.25" adapter and you're good to go; saves you $2000 minu $200 (WO price) bucks. 
Best,
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Hernando
Nexstar 8/CG-5 ASGT; WO Megrez 102ED SV
WO ZS66SD;Orion ST80;SkyScout/Connect
WO:2"Dielectric,Binoviewer 8/12.5/20/25mm's,SCT Crayford 2-spd
Hyperion 8-24mm Zoom,21mm; WO 7.5-22.5mm
TV Naglers 5T6, 9T1, 12T2; Panoptic27
BO/TMB 2.5/3.2/4/6mm;UO HD 5;BGO 6;Meade-RGO 7;UO 9/12.5
Brandon 16mm;Ultima18;TV 2x,3x barlow&8/11/15/20plossl
Siebert36-OB(&10/15mm);UWA30;Paragon40;Meade56Smoothie
C-f/6.3FR;OIII,UHC,SkyGlow,U-block,8" S-flter
GLP/Telrad/MRF/9x50RACI
NexImge;Canon RebelXS
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Joe Ogiba
Post Laureate
Reged: 02/14/02
Posts: 4027
Loc: NJ USA
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Quote:
Also using a 2" diagonal/eyepieces on the 8" SCT with a William Optics binoviewer; just put on the 2-1.25" adapter and you're good to go; saves you $2000 minu $200 (WO price) bucks.
Best,
You need a true 2" binoviewer with 40mm clear aperture to reach infinity focus with 2" eyepieces and not see vignetting with a 40mm fieldstop.
40mm VP units $999 T-2 or 2" Base 2" EP's scopes (EVPbinoM240)
photo of 2" version
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Pentax PF-80ED,Meade 102ED APO,Orion EON 72,120ST
Apex 127,C6 XLT,CR150,C9.25,XT10
Zeiss 7x42 FL,Canon 10x42L IS WP,15x50 IS
12x36 IS II
Garrett Optical 28x110 HD-WP Signature Series
Oberwerk BT-80 45, Apogee RA-88-SA
Denk II Power x Switch binoviewer w/13mm Ethos, 20mm Pentax XW's, 20mm Widescan III's.
17mm Ethos, 22mm Nagler, 40mm Pentax XW, 14mm Pentax XL, 5.2mm Pentax XL, 8-24mm Pentax XL Zoom
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cavefrog
sage
Reged: 11/11/08
Posts: 428
Loc: loozyanna
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yeah, but musn't we also consider the weight? 2" binos with 2" ep's... wouldn't that be about the same weight as an 8" sct?
Theo
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I am only an egg
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Joe Ogiba
Post Laureate
Reged: 02/14/02
Posts: 4027
Loc: NJ USA
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I don't have any problems balancing my C9.25 with Denk II and a pair of 13mm Ethos.
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Pentax PF-80ED,Meade 102ED APO,Orion EON 72,120ST
Apex 127,C6 XLT,CR150,C9.25,XT10
Zeiss 7x42 FL,Canon 10x42L IS WP,15x50 IS
12x36 IS II
Garrett Optical 28x110 HD-WP Signature Series
Oberwerk BT-80 45, Apogee RA-88-SA
Denk II Power x Switch binoviewer w/13mm Ethos, 20mm Pentax XW's, 20mm Widescan III's.
17mm Ethos, 22mm Nagler, 40mm Pentax XW, 14mm Pentax XL, 5.2mm Pentax XL, 8-24mm Pentax XL Zoom
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