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Thread: GSO Cassegrains

  1. #21
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    Default Re: GSO Cassegrains



    It is quite difficult to find a Klevtsov or Rutten design unless you find a smaller optical house that specializes.
    Skywatcher has not released anymore information on the Rutten that they were showing at various EU astro shows.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2" Orion Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

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    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
    Ya gotta keep this Apo/Achro thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)
    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

  2. #22
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    Default Re: GSO Cassegrains

    It’s a shame. The Rutten design is the next best thing to an apo.
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  3. #23
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    Default Re: GSO Cassegrains

    Not GSO but worthy of consideration
    https://www.teleskop-express.de/shop...assegrain.html

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  4. #24
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    Default Re: GSO Cassegrains

    Quote Originally Posted by not_Fritz_Argelander View Post
    Not GSO but worthy of consideration
    https://www.teleskop-express.de/shop...assegrain.html
    Sweet! "You're gonna need a bigger mount!"
    ~Frankie~ My mind: Always on...Slightly off.
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    Celestron CPC1100 SCT...
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    Atlas EQ-G (EQ6) & Celestron AVX...
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  5. #25
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    Default Re: GSO Cassegrains

    Orion UK definitely produces a nice product.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2" Orion Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

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    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
    Ya gotta keep this Apo/Achro thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)
    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

  6. #26
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    Default Re: GSO Cassegrains

    Quote Originally Posted by SpyderwerX View Post
    Sweet! "You're gonna need a bigger mount!"
    No question about that, even for visual.
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    ST80 (mods for white light solar), SV ED80 f7 Newtonians: Z12 f5 Catadioptrics: VMC110L, Intes MK66 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binocular Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker III, Vixen Porta II, Celestron CG5, Orion
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  7. #27
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    Default Re: GSO Cassegrains

    The cheaper 8 inch Vixen modified Cass was not optically impressive.
    If you want an 8 Cass that will optically knock your socks off try the Takahashi cn212mm. Was real close to a Zambuto equipped 10 inch dob on the planet's.
    Newtman but some refractors allowed.

 

 
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