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Thread: PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector

  1. #1
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    Default PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector






    Eos on left vs HDS B42 both on high
    very useful beam, well worth the minimal effort.
    Last edited by Pumaman; 01-23-2007 at 02:09 PM.

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    Flashaholic* Edwood's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Nice work.

    Did you have to mod the ims17?

    -Ed
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  3. #3

    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Not too bad. If you want a smoother beam a drilled out McR18 gives an outstanding beam from an XR-E.

    Was that the optimal focal point for the IMS?

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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    probably sanded 3-4 mm off the bottom of the reflector. bought the eos pre-modded with a ROXH and the ims17. It was pretty good before, but the useful spill is much greater with the cree.

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    Enlightened zgurl's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Hi Pumaman,

    Nice mod. It even seems that I would be able to do that. Anyway, it is clearly worth trying it. So I just ordered some Crees... and hopefully I will make my first "mod"

    What sort of runtime do you get with that mod?

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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    update.

    decided to try the mcr17xr reflector from the sandwich shoppe. Had to file off about 3 mm off the front to fit it in the eos. Taking that much off the front gives the reflector a little bit of the famous dark ring in the beam, but not enought to affect real-world use. and as you can see its much better than the ims17. now a beautiful, bright beam in a compact headlamp





    eos on left, HDS B42 on high on right.
    Last edited by Pumaman; 01-23-2007 at 02:15 PM. Reason: spelling

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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Quote Originally Posted by zgurl
    Hi Pumaman,

    Nice mod. It even seems that I would be able to do that. Anyway, it is clearly worth trying it. So I just ordered some Crees... and hopefully I will make my first "mod"

    What sort of runtime do you get with that mod?
    seems to be about the same as stock, 2+ hours on high. Seems like medium is bright enough for most things though.

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    Flashaholic* jar3ds's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    how low is low? is it even more bright?

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    *Flashaholic* Darell's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Quote Originally Posted by zgurl View Post
    What sort of runtime do you get with that mod?
    Runtime will be the same, as the current has not changed - just the efficiency of the emitter. You get more brightness at the same runtime.
    - Darell, the EVnut
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  10. #10

    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector

    What sort of cooling do yo have to give to the Cree on the star? I can't see any. How long could you run it safely on high say?

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    *Flashaholic* Darell's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector

    There is no additional heat sinking from the factory, so you get the same thing with the replacement. You just get more light. They do get hot on high, and we guess that's what the temp sensor is for - to back off the current at a certain temp.
    - Darell, the EVnut
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    Flashaholic* Edwood's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector

    Anyone have a hankering to try this mod with a Q5 Cree? I sure am.

    Is there any better reflector to use than the mcr17xr reflector?

    I guess spending time sanding it down isn't too terribly horrible. That way I can be sure it is a tight fit, unlike the loosey goosey IMS17.

    -Ed
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    Flashaholic* Edwood's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector

    Just got a WG Q5 Cree in and swapped out the Lux out of another PT EOS.



    Now I guess I'll have to get a mcr17xr reflector. Right now, it's running like a Mule. Spill is noticeably brighter than my WO U-Bin SSC P4.

    -Ed
    Small: MJP Extreme III • Orb Raw Ti and NS
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    Flashaholic* Edwood's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Quote Originally Posted by Pumaman View Post
    update.

    decided to try the mcr17xr reflector from the sandwich shoppe. Had to file off about 3 mm off the front to fit it in the eos. Taking that much off the front gives the reflector a little bit of the famous dark ring in the beam, but not enought to affect real-world use. and as you can see its much better than the ims17. now a beautiful, bright beam in a compact headlamp



    Did you use the black plastic optic/reflector holder at all? Or did you just tape it like in the pic and let the pressure hold it when enclosed?


    -Ed
    Small: MJP Extreme III • Orb Raw Ti and NS
    Medium: Oveready Triple Copper E2e
    • MJP-E3e (15-3Ostar) • Surefire L4 (MC-E) • LensLight Mini
    Large: Surefire M6-WA1185 • M-Zep MZXR-7a

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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re

    Quote Originally Posted by Edwood View Post
    Did you use the black plastic optic/reflector holder at all? Or did you just tape it like in the pic and let the pressure hold it when enclosed?


    -Ed
    just used the tape and pressure. felt pretty secure.

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    *Flashaholic* Darell's Avatar
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    Default Re: PT Eos Headlamp + ims17 reflector + cree x-re//update-mcr17xr reflector

    If my Q5's ever arrive, I DO think I'll get that hankering to toss one into this thing with a Mcr17xr. Can't wait... though I have to....
    - Darell, the EVnut
    Email me: darelldd -at- gmail - I don't do PM.
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