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  1. #1
    Johann von Hesse's Avatar
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    Default Binoviewers and eyepieces I use



    Just some of the junk I use for visual astronomy. The eyepieces I've posted, are the ones I use the most in my binoviewers. Well, I do not use the 35mm PanOptic. The pic of the 2" bino with its cold weather covering on, is my favorite.

    Pic 1 is of my Zeiss binoviewer in one of my SCT's.
    Pic 2 is my 6" travel scope with a Siebert binoviewer.
    Pic 3 is my 2" binoviewer with a CA of 40mm that uses 2" EP. I have never taken the cold weather cover off it.
    Pic 4 shows some of my 2" eyepieces
    Pic 5 shows the eyepiece sets that I use in my 1.25" binoviewers
    Attached Images Attached Images
    RCP Observatory
    A Veteran of the Binoviewer Wars (2001-2003)
    10" f/10 LX200GPS
    6" f/6.5 / 5" f/6.5 / 4" f/6.5 Refractors
    6" f/9 Refractor / 8" f/9 Refractor
    Eyepieces: Zeiss / Olympus / UO Konig / TeleVue / Siebert Optics Ortho's & Observatory 2"

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  3. #2
    Johann von Hesse's Avatar
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    Pic 1 ) The standard in excellence.

    Pic 2 ) A rare 2" UO Pretoria eyepiece was a specalized design. Only 150 were made.

    Pic 3 ) The best low power 2" binoviewer eyepieces. The 32mm and 36mm Siebert Optics Observatory series.
    Attached Images Attached Images
    RCP Observatory
    A Veteran of the Binoviewer Wars (2001-2003)
    10" f/10 LX200GPS
    6" f/6.5 / 5" f/6.5 / 4" f/6.5 Refractors
    6" f/9 Refractor / 8" f/9 Refractor
    Eyepieces: Zeiss / Olympus / UO Konig / TeleVue / Siebert Optics Ortho's & Observatory 2"

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  5. #3
    stewarttt's Avatar
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    Default

    Johann,
    Does the siebert binoviewer have a CA of 25mm? Can you give us your thoughts of the binoviewer with the CA of 40mm as compared with the other binoviewers that you have listed. Thanks.
    Last edited by stewarttt; 11-30-2011 at 03:53 AM.
    CPC1100

  6. #4
    Johann von Hesse's Avatar
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    When the very first 2" binoviewer was made in 2002, Siebert Optics contacted the optics testing lab at the observatory I use to work at. I was on the optics team that got to do hands on testing of a true deep sky binoviewer. Siebert Optical is even making a 2" binoviewer with a CA of 45mm.

    I have tested the 2" binoviewer over the years against every known binoviewer on the market.
    I will state, that the 3D views that are seen with the 2" binoviewer are amazing. When using wide afov eyepieces, it makes you feel as if you are going to fall through the eyepieces into space. The views are truly mind blowing. Viewing Jupiter with two 2" 17mm T4 Naglers in a 9" refractor is a sight that you will never forget.
    There is not one 1.25" binoviewer that can come close to the light throughput of the 2" binoviewer. It is the only binoviewer that can truly go after faint deep sky objects, without the light lost that a 1.25" binoviewer has. Like the MK-V and the TeleVue binoviewer,..this binoviewer was built from the ground up to be used in a telescope. All the others on the market today are converted microscope heads. The better converted binoviewers will replace the optics with better ones.

    To answer you question about the 1.25" Siebert. The one I have that is in the pic, is not the 25mm. I will be getting the Siebert 1.25" with a CA of 35mm to go along with my 2" bino.
    RCP Observatory
    A Veteran of the Binoviewer Wars (2001-2003)
    10" f/10 LX200GPS
    6" f/6.5 / 5" f/6.5 / 4" f/6.5 Refractors
    6" f/9 Refractor / 8" f/9 Refractor
    Eyepieces: Zeiss / Olympus / UO Konig / TeleVue / Siebert Optics Ortho's & Observatory 2"

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    stewarttt's Avatar
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    Default

    Johann,
    I have been reading this and some of your other posts on this site about eyepeices and binoviewers. Thanks. Very helpful info. I just recently bought a CPC1100 scope and will be using it for a few months without buying anything else, (some more good advise from people on this site). I did get a chance to look through some binoveiwers a few years ago and knew right then I was going to go down that route.
    CPC1100

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  10. #6
    j.gardavsky's Avatar
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    Hello Johann,

    thanks for sharing the pics of your equipment. What makes are your 6incher refractors?

    Best

    JG
    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS;
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  12. #7
    Johann von Hesse's Avatar
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    Default

    Quote Originally Posted by j.gardavsky View Post
    Hello Johann,

    thanks for sharing the pics of your equipment. What makes are your 6incher refractors?

    Best

    JG
    My 6" f/8 uses an RR objective lens from Hans in Holland. I believe he is no longer in business. I bought the objective from him over 10yrs ago. It is an excellent objective. My 6" f/9 ED is a Meade.
    RCP Observatory
    A Veteran of the Binoviewer Wars (2001-2003)
    10" f/10 LX200GPS
    6" f/6.5 / 5" f/6.5 / 4" f/6.5 Refractors
    6" f/9 Refractor / 8" f/9 Refractor
    Eyepieces: Zeiss / Olympus / UO Konig / TeleVue / Siebert Optics Ortho's & Observatory 2"

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