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Thread: New Vixen Planetarys

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    Default New Vixen Planetarys



    Vixen is coming out with a new set of high power planetary eyepieces that are a modified Konig design (3 element + Smyth lens)
    1.25" barrels and a 42 degree FOV.

    http://www.vixen.co.jp/img/product/a...r_bnr_w720.png

    http://www.vixen.co.jp/img/product/at/acc/hr_w254.jpg

    Graphs on the Vixen site show the Strehl achieved with the telescopes 103S Refractor f/8 and the R200 Newtonian f/4,

    http://www.vixen.co.jp/img/product/at/acc/hr_g.jpg


    If these perform as indicated they could be some very interesting eyepieces for both refractor and reflector users!
    Last edited by j.gardavsky; 03-26-2016 at 08:30 PM.
    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
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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)

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    Default Re: New Vixen Planetarys

    Graphs are in Chinese! LOL just kidding.

    These do look interesting but a little narrow in scope. All I need is another thing on my wish list!
    frazmataz and Gabby76 like this.
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    Default Re: New Vixen Planetarys

    I know what you mean, I was looking at them the other day thinking there goes another $1000.......
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    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)

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    Default Re: New Vixen Planetarys

    Looks very interesting. You can definitely count on the Vixen reputation for quality.

    Quote Originally Posted by Gabby76 View Post
    I know what you mean, I was looking at them the other day thinking there goes another $1000.......
    You have those thoughts too?
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    Default Re: New Vixen Planetarys

    Hello Gabby,

    and thanks for the alert.
    The graphs in your post show the Strehl across the FOV of the eyepieces, as indicated on the graph.
    As Vixen keeps quiet about the EP design, the only way to achieve this flat Strehl is the Fluoride crystal optics (not FPL 53 !!!), >> the price is expected to be around 300 USD.

    Best,

    JG
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    Default Re: New Vixen Planetarys

    I was following a few posts from Don at eyepiece etc. and he also mentioned in one report it stated lanthanum but another mentioned fluorite. To maintain a minimum strehl of 0.93 across the FOV I would think it will be fluorite also.
    There are rumors of at least a 3mm and possibly a 3.?mm in the works.
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    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)

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    Default Re: New Vixen Planetarys

    Very interesting. I can live with the FOV for planetary. How is the eye relief. For me that is the key
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    Default Re: New Vixen Planetarys

    Hello Gabby,

    the problem I have with this new HiRes EP from Vixen is its optics design, and the silence about it. It won't be 3lenses König, as they say ha, ha. Can't imagine a "modified" Kellner, ha, ha, ha.
    Regarding the tunnel FOV, we may bet what it really is.
    When you make a fully APO Smyth lens, as the Leica Barlow for their spotting scopes, then you can place anything behind (Erfle, König, ...), even a magnifying lens for watching the fleas.

    I keep wondering what is Vixen hiding.

    Best,

    JG
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    Default Re: New Vixen Planetarys

    Quote Originally Posted by Rogan View Post
    Very interesting. I can live with the FOV for planetary. How is the eye relief. For me that is the key
    Eye relief is stated as 10mm on all 3 eyepieces. So far all is Vixens scarce information.
    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)

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    Default Re: New Vixen Planetarys

    Interesting - some eyepieces shorter than my 2.5mmT6 Nagler.... At those focal lengths, with a 42 degree AFOV they'd only be usable with a tracking mount - with a manual mount things shoot across the field too fast to be usable in my 2.8mm Tak eyepiece, which is the same AFOV, so these would be even worse. Those strehl graphs look interesting, though, and the 10mm eye relief is a lot better than the 5.8mm of the Tak - though not quite as good as the 12mm on the Nagler. The big question, though, is how often you'd get seeing conditions good enough to use them...
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