French_Candle
Newly Enlightened
- Joined
- May 28, 2008
- Messages
- 52
hello everybody
where can I buy one ready to use ?
where can I buy one ready to use ?
surefire 6P aspherical head
- Thread starter French_Candle
- Start date
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gallonoffuel
Enlightened
I don't think you can. The best bet is to get a 6P clone head and get a few aspherical lenses of KD, DX, or your favorite optics discount supply house (anchor optics is a good one, surplus shed is another) and try them until you find one that gets you the beam pattern you want.
TriChrome
Enlightened
The problem with that I think is going to be how to focus the lens properly. You can't really unscrew the 6P's head too much or the battery will loose contact (or it might separate into two parts).
I too don't know of any aftermarket heads for a 6P which can do this
I too don't know of any aftermarket heads for a 6P which can do this
Kestrel
Flashaholic
I think that if a machinist offered a turnkey solution based on the SureFire bezel (including some lens-positioning adjustability for fine-tuning), that would be a hit here with the 'lego' folks. 
gallonoffuel
Enlightened
Unscrewing the head wouldn't focus anything anyway, since the distance between the emitter and lens is set by the reflector in most P60 hosts. You'd have to either shim the lens out, or cut the reflector down.
I had bought a number of aspheric and PCX lenses in the general diameter of the stock lens and tried them until one worked well. Some were terrible, others spread the beam more, and one wound up making the beam strikingly similar to the KL1 heads but even tighter. Unfortunately I didn't document where and what lenses I had acquired. I might be able to take them into the lab and find the FL though. I use this one for night fishing now.
TriChrome
Enlightened
Good point, overlooked that one
gallonoffuel
Enlightened
Good point, overlooked that one
The genuine Surefire bezels and some of the clones 'headspace', for lack of a better term, off an inner lip behind the lens. If your bezel allows you to remove the retaining ring and lens and not have the dropin fly out, then I suppose a new threaded insert could be made that replaces the retaining ring. Basically a bezel extension. The solarforce lantern head works this way. The front of this extension would be nearly identical to the original bezel but with more threads for the new retaining ring essentially making the lens platform deeper. You could have a shim pack where you test fit the lens using various shims until you got the beam profile you wanted. once you find it, install the new retaining ring and you're good to go.
Personally I think it would be easier to find PCX lenses with various FLs and try them until you find what you're looking for. You can always fine tune it by adding either a shim to the front of the reflector (increasing the distance between the emitting surface and the lens) or machining down the front of the reflector (reducing that distance). You have to paint the reflector flat black to get rid of those terrible sparkly rings anyway, so it doesn't matter if you chew it up.
