Thanks very much for your help. Michael
Binoviewer opinion
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Binoviewer opinion
Thanks very much for your help. Michael
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Re: Binoviewer opinion
It's tricky. I bought the WOs, it's good value but limiting at the same time. Two things to be aware of:
(1) The optical path is longer so you can only use it on scopes that have large backfocus, and
(2) The
IIRC I was able to use it on my 12"
I would really have liked to use longer focal length eyepieces for bright and crisp views (less magnification) so I got two 32 mm eyepieces. As predicted by Lady Fractor, there was severe vignetting (the eyepieces had a larger field stop than the clear
Check out this thread for the details.
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Re: Binoviewer opinion
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Re: Binoviewer opinion
Michael
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Re: Binoviewer opinion
https://www.telescope.com/Orion/Orion-B ... binoviewer
After playing with them for awhile I realized that they suit me perfectly and I don't need anything fancier. They will work fine with your AR102, but you will need to use a barlow to bring them to focus.
The trick with barlow/glasspath corrector may work for
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Delos, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
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Solar: HA: Lunt 50mm single stack, W/L: Meade Herschel wedge.
Observing: DSOs: 3122 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2196, S110: 77). Doubles: 2461, Comets: 34, Asteroids: 261
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Re: Binoviewer opinion
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Re: Binoviewer opinion
Right, I don't think you can get focus unless you use a Barlow as Andrej noted. I just tried the 1.6x Barlow that comes with it on my Z12 (configured for visual), and I was able to get focus on a remote tree with lots of backfocus to spare. It will probably work for yourMichael131313 wrote: ↑Tue Sep 12, 2023 4:33 am Thanks very much Henk. The link has a lot of information that I will have to work through. So you don't think that the WO binos will work with my Dob? I appreciate all your help.
Michael
The WO also comes with two 20 mm eyepieces, unlike Andrej's Orion and the expensive Orion that I linked. The eyepieces are bought separately. BTW I don't think Andrej's binoviewers are the same as the WO.
So, if you don't mind an extra 60% focal length for your
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Re: Binoviewer opinion
There are many offerings of this style prism BVs on the market. They maybe not identical, by they are based on the same optical design and optically behave very similar.SkyHiker wrote: ↑Tue Sep 12, 2023 11:21 pmRight, I don't think you can get focus unless you use a Barlow as Andrej noted. I just tried the 1.6x Barlow that comes with it on my Z12 (configured for visual), and I was able to get focus on a remote tree with lots of backfocus to spare. It will probably work for yourMichael131313 wrote: ↑Tue Sep 12, 2023 4:33 am Thanks very much Henk. The link has a lot of information that I will have to work through. So you don't think that the WO binos will work with my Dob? I appreciate all your help.
MichaelDob too.
The WO also comes with two 20 mm eyepieces, unlike Andrej's Orion and the expensive Orion that I linked. The eyepieces are bought separately. BTW I don't think Andrej's binoviewers are the same as the WO.
So, if you don't mind an extra 60% focal length for yourDob , the WO should be fine.
In this case consideration is whether you want to have a pair of 20mm Erfles for extra $100 or to spend them on a pair of your favorite EPs and whether you want 2x or 1.6x barlow. Mine version of BVs came with 1.8x.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Delos, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC.
Solar: HA: Lunt 50mm single stack, W/L: Meade Herschel wedge.
Observing: DSOs: 3122 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2196, S110: 77). Doubles: 2461, Comets: 34, Asteroids: 261
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Re: Binoviewer opinion
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Re: Binoviewer opinion
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6R, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100 ∞ AP Gear: ZWO EAF and mini EFW and the Optolong L-eXteme filter
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°
Searching the skies since 1966. "I never met a scope I didn't want to keep."
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Re: Binoviewer opinion
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Re: Binoviewer opinion
The linear BVs will work with just about any configuration but the clear
The WO, Celestron, Stellarvue BVs work very well though you will have to check the clear
These are a new option and comparable to the Baader Maxbright II with a 28mm clear
https://www.teleskop-express.de/shop/pr ... copes.html
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The only culture I have is from yogurt
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