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Thread: Celestron AVX 6" Newtonian recommended eyepieces

  1. #21
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    Default Re: Celestron AVX 6" Newtonian recommended eyepieces



    You should realize that getting extra magnification for DSOs may be disappointing because the brightness will go down no matter what the quality of the eyepiece is. Also, getting premium eyepieces on a $100 Newt seems imbalanced to me. For planets I would spend my money on a scope with 1500 mm focal length or more, for viewing DSOs with more magnification I would invest in a 12" Dob. Like others said, familiarize yourself with your equipment before spending money. Check the prices of an AT6RC, it is not a whole lot more expensive than a good eyepiece.
    Ramsey likes this.
    ... Henk. Telescopes: 6" Mak-Newt (Comet Hunter), ES ED127CF, ES ED80, Zhumell Z12, Coulter Odyssey 10, AT6RC, Venture RX-7, Celestron Skymaster 20x80, Mounts and tripod: Losmandy G11S, AVX, LXD55, Tiltall, Cameras: Fuji X-a1, Canon SX40, Xt, XSi, T6, ELPH 100HS, DIY: Dob and camera barndoor trackers, afocal adapter, Dob with foldable base and Az/Alt setting circles, Accessories: SSAG, Plossls, Barlows, Telrad, laser collimators (Seben LK1, Z12, Howie Glatter), Cheshire, 2 Orion RACIs 8x50, Software: DSS, ImageMagick, PHD, Nebulosity, Photo Gallery, Gimp, CHDK

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  3. #22
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    Default Re: Celestron AVX 6" Newtonian recommended eyepieces

    Quote Originally Posted by Ramsey View Post
    There was one reviewer who identified himself as an "expert" that said the following:

    "A lot of the outer field is out of focus in f/4.6 scope, but works great in longer f/6 or more scopes, pinpoint stars to edge and dark sky background makes it a worthy pick against more costly eyepieces."

    My Newt is f/5. should I be hesitant to buy this one? There are other pieces, obviously, with varying technical specifics that might not have that problem. What's your opinion?
    Different observers with different eyes and experience see differently. You could buy, try, and return if unsatisfactory.
    Gabby76 and ProfEclipse like this.

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    : Refractors:

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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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    EQG

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    Default Re: Celestron AVX 6" Newtonian recommended eyepieces

    Quote Originally Posted by Ramsey View Post
    Well, the glass is not the only thing I consider but I know Zeiss very well and they've crafted some of the best camera lenses, binoculars, and spotting scopes I've used so I never doubt them. Really, as a beginner this is the best information I have other than second opinions when choosing a qualifying eyepiece, among some technical specifications.
    Hello Ramsey,

    the Zeiss glass is in fact Schott, and they develop the most advanced glass materials for both the professional optics systems, and for the hobby optics. They both share the Carl Zeiss Foundation.
    The companies Leica Cameras, Sports Optics, and Microsystems, are cooking their own special glass materials.

    The Schott glass is available on the markets when the manufacturers are ready to pay the Schott prices,
    the Leica special glass materials are practically not available to other parties, unless they put "Leica" on the product, and make the optics under the Leica prescription.

    The Thomas Baader company is to some extent associated with Zeiss, enjoying the rights to commission the original Zeiss designs for the astronomy optics, plus the new technologies (HT).

    Regarding the Baader eyepieces, the best reputation have the discontinued Carl Zeiss Abbe orthos Company Seven | Carl Zeiss Abbe Ortho Oculars Page and the discontinued Genuine Orthos (they are still made by others in the Far East)
    Among the new optics are the Baader Classic Orthos (BCOs) with larger FOV and more eye relief than other orthos, and the pretty expensive new Carl Zeiss Barlow.
    The Baader Zoom Mark IV has been reviewed as comparable in the optics performance to the Zeiss Diascope Zoom. The only significant difference is in the mechanics, the Zeiss has better mechanics.
    The Hyperions are not suited for the fast scopes.

    I am using on my refractor mostly the eyepieces from Leica, Swarovski, and Zeiss, and I am perfectly satisfied with their performance. They have been designed for the fast refractors.
    From Baader, these are the 10mm and 6mm BCOs, and the Q-Turret triplet Barlow, in my stable.

    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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