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Thread: Aspherical Novatac / HDS Mod???

  1. #1
    *Flashaholic* toby_pra's Avatar
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    Rolleye11 Aspherical Novatac / HDS Mod???

    Hello!

    Cant find something about...

    Does anyone already make it possible to mod a Novatac / HDS with an
    aspherical lens?!

    There once was a Novatac (Supernova) Mod with an Tir-Optic, but not
    an aspherical mod, as far as i know...

  2. #2
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    Default Re: Aspherical Novatac / HDS Mod???

    Quote Originally Posted by toby_pra View Post
    Hello!

    Cant find something about...

    Does anyone already make it possible to mod a Novatac / HDS with an
    aspherical lens?!

    There once was a Novatac (Supernova) Mod with an Tir-Optic, but not
    an aspherical mod, as far as i know...
    I've tried it. The focal point is beyond the length of the front end. You could probably do it but I don't see how it'd be waterproof and still have a good focus. A TIR optic that's narrow would be the second best choice. I can't seem to find a decent optic that fits.

  3. #3
    *Flashaholic* toby_pra's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Did you have a picture of the beam?

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    Default Re: Aspherical Novatac / HDS Mod???

    Quote Originally Posted by toby_pra View Post
    Did you have a picture of the beam?
    Of the the aspherical? No I didn't bother, it wasn't at all practical. I was holding the optic about 2-5mm in front of the light to get it to focus. Since I was using the SSC it was just a projected image of the die.

    What I quickly thought of was since the HDS has the ability to use bezel rings, you could make a custom ring that would have extend out about 2-5mm (I can't remember) have a lip for the optic to sit on top of an o-ring and another small retaining ring to hold the optic to the new bezel. Using Teflon tape on the threads would would allow the head to remain water proof. I don't have the ability to do this but I could draft it up.

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    *Flashaholic* toby_pra's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Thats a good idea...

    But unfortunately i cant make such a ring possible too.

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    Flashaholic* tx101's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    I have tried it as well .... SSC emitters do not work very well with aspheric lens
    Tebore is right about the focal distance, there is not enough length in the
    Novatac head to focus the lens correctly.
    Kid9P ask the same question no long ago and I tried it out .... it just so happen
    that I had a 19mm (???) aspheric lens in my spares box.
    This is the result of that experiment





    If you wanted to get similar results as an Mag + aspheric lens
    you need a Cree emitter and also remove the reflector from the Novatac.

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    Flashaholic* rayman's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    If I were you I would go with another optic, not a aspherical lens. I just built me a Aspherical Maglite with a Cree R2. I also bought me a aspherical lens for my Jetbeam Jet-III but the beam looks really bad because you aren't able to focus with it. Maybe it works better with the Novatac and HDS. With the Maglite you have the ability to focus, so you can get a 'sharp image of the die' for every distance. This is just my opinion.

    rayman
    My Lights (current EDC: Foursevens Mini MkII Titanium)

  8. #8
    *Flashaholic* toby_pra's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    After all i think its not possible...the beam looks really bad IMO.

    As all of you mentioned too. Perhaps i need to go back to buy
    a supernova...

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    Flashaholic* brighterisbetter's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Ok, so we know that an SSC emitter does not pair well with an aspheric. But now I'm wondering how an aspheric would look with a Novatac with the K2 swap?

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    Flashaholic* RyanA's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Toby, you might be better off trying a different host, I have an aleph19 with an aspheric setup that works nicely. It is slightly longer than the novatac and you'd loose the UI. Shoot me a pm if you'd like details. Otherwise you might be able to get a cree swapped in. That would be cool!

  11. #11
    Flashaholic* tx101's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Quote Originally Posted by brighterisbetter View Post
    Ok, so we know that an SSC emitter does not pair well with an aspheric. But now I'm wondering how an aspheric would look with a Novatac with the K2 swap?
    I tried an aspherical lens with a K2 modded Mag and it does
    come out better than a SSC P4 (if my memory is correct )
    I'll try and get some beamshots up later .... tomorrow

  12. #12
    Flashaholic* tx101's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Just for you Bruce

    Both photos are a Mag with K2 TFFC to give you an idea of what
    the K2 looks like behind an aspherical lens




    Heres another one comparing with a R2 @ 1200mA and K2 TFFC @ 1400mA
    The R2 has a KD lens and the K2 a MG lens



    R2 on the left
    K2 on the right


    Excuse my total lack of photography skills

  13. #13
    Flashaholic* brighterisbetter's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Mmmm, that looks very nice IMO. Wish I had a 21mm or 22mm (??) ashperic to try it out on my Novatac. Isn't the stock lens 22.61mm?

  14. #14
    Flashaholic* tx101's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Its not the diameter you have to worry about but the focal length

    I was messing about trying to get an aspherical lens to work with
    a SF 6P. Ended up buying half a dozen lens ..... I gave up in the end

  15. #15
    *Flashaholic* toby_pra's Avatar
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    Default Re: Aspherical Novatac / HDS Mod???

    Have you mod your Novatac with it?

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