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Thread: 9mm Williams Optics SWAN Disassembly

  1. #21
    Don Alvarez's Avatar
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    Default Re: 9mm Williams Optics SWAN Disassembly



    Quote Originally Posted by Shorty Barlow View Post
    It even has a marketing video on YouTube lol.

    https://www.youtube.com/watch?v=C6C_-gp1GHU
    Not much actual marketing going on there.
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  2. #22
    not_Fritz_Argelander's Avatar
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    Default Re: 9mm Williams Optics SWAN Disassembly

    Quote Originally Posted by Don Alvarez View Post
    Not much actual marketing going on there.
    I think one is expected to just ooh and aah in rapt delight?
    j.gardavsky and Don Alvarez like this.

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  3. #23
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    Default Re: 9mm Williams Optics SWAN Disassembly

    Quote Originally Posted by not_Fritz_Argelander View Post
    I think one is expected to just ooh and aah in rapt delight?
    Watching the video I was commenting:

    ooh, it's blackened inside, Waaahnsinn
    aah, it has got microrills inside, Waaahnsinn
    ...

    Back to the design

    On yesterday, I've found the pair of the Hensolds (Bundeswehr army surplus) at our doorstep when going out for smoking a cig.
    Well, these are very small f=15mm 70° AFOV eyepieces, sized close to a regular narrow AFOV Plössl, but pretty lightweight.
    The first laser light tracing through the EP lets me believe:
    (focus plane with reticule 1 - 2 - 1 - 1), the eye lens flat out

    May it be that the Swan is a sort of clone of the decades old Hensoldt (made in Wetzlar) for the Leopard tanks?

    Best,

    JG
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  4. #24
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    Default Re: 9mm Williams Optics SWAN Disassembly

    Excellent! Thanks.

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    Default Re: 9mm Williams Optics SWAN Disassembly

    Quote Originally Posted by Don Alvarez View Post
    Not much actual marketing going on there.
    Yeah, you think they'd have made more effort lol.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

  6. #26
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    Default Re: 9mm Williams Optics SWAN Disassembly

    Quote Originally Posted by j.gardavsky View Post
    Watching the video I was commenting:

    ooh, it's blackened inside, Waaahnsinn
    aah, it has got microrills inside, Waaahnsinn
    ...

    Back to the design

    On yesterday, I've found the pair of the Hensolds (Bundeswehr army surplus) at our doorstep when going out for smoking a cig.
    Well, these are very small f=15mm 70° AFOV eyepieces, sized close to a regular narrow AFOV Plössl, but pretty lightweight.
    The first laser light tracing through the EP lets me believe:
    (focus plane with reticule 1 - 2 - 1 - 1), the eye lens flat out

    May it be that the Swan is a sort of clone of the decades old Hensoldt (made in Wetzlar) for the Leopard tanks?

    Best,

    JG
    It could be influenced by the Hensoldt design. Or whoever designed it came up with a similar idea. I wouldn't use the 9mm SWAN in a tank, unless it was being fired out of the gun barrel lol.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

  7. #27
    Shorty Barlow's Avatar
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    Default Re: 9mm Williams Optics SWAN Disassembly

    Quote Originally Posted by not_Fritz_Argelander View Post
    I think that the design is a nightmare. Konig is a perfectly good design in and of itself.

    My guess is that all those extra surfaces in Nagler designs are done with a view toward tolerances that make the wave fronts pretty reliable in manufacturing. This stripped down Nagler could only work if everything was perfect. The chances of that happening in a manufacturing process are vanishingly small....
    It probably looked good drawn on the back of a beer mat in a seedy bar early in the morning.
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  9. #28
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    Default Re: 9mm Williams Optics SWAN Disassembly

    Hello Shorty Barlow,

    thank you very much for dissecting the WO SWAN, and for the discussion!

    My feeling is, that whenever all the lenses in the EP barrel have the same diameter, they possibly come from the extremely large manufactured batches, made mainly for another purpose, or for any purpose, who knows.

    This sentence of yours is highly likely,
    Quote Originally Posted by Shorty Barlow View Post
    It probably looked good drawn on the back of a beer mat in a seedy bar early in the morning.
    )*

    The military optics are known to be often designed from skretch, and the designers are often forced to look for some exotic or new optics materials to make the final product.
    One of the published design engineering routines, so far disclosed, reveals a routine starting with the end purpose specs of the optics, and going on backwards through some math to the final lens materials specifications, even if these materials are not a catalogue standard. If they would melt special glass materials just for the canon sight optics, that's a question, I don't know. One of these 'specials' might be, or even not, the pair of the Hensoldt EPs in my collection.

    )* During my former life, I have been using the beer mats to put down some 'great ideas',
    I would have forgotten by the breakfest time.
    Colleagues of mine have been keeping some of these beer mats, or even no more, gone with the wind.

    Thanks for the great truth as quoted above,

    JG
    SpyderwerX and Shorty Barlow like this.
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  10. #29
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    Default Re: 9mm Williams Optics SWAN Disassembly

    I haven't dissected any eyepieces for a while lol. I didn't mind sacrificing the SWAN's as they were an expensive disappointment. They weren't good in fast or slow scopes. It was interesting to see what was inside.



    I have no immediate plans to disassemble these two 25mm Plossls above. But they're both good and far better than the SWAN's. The Orion Sirius is Barsta and good at f/6 and slower, the GSO is good at f/5. The Orion was included with a scope I bought and the GSO Plossl was far cheaper than the SWAN. I'm not sure who the OEM of the 9mm SWAN's is but WO are charging way too much for them.
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    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

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