aussiebuddha
Enlightened
- Joined
- Aug 26, 2007
- Messages
- 252
anyone knows the diameter of the 6p lens? I'm going to attempt to put a PCX lens, and would liek to buy one before i get my new 6p.. thanks.
Last edited:
6p aspheric thrower?
- Thread starter aussiebuddha
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Re: 6p lens diameter?
Quick and not so Squeaky Clean
I took a 6P lens out, boiling water to loosen the nitrolon lens retaining ring. And removed the reflector from a Cree Dropin Module.
You are planning on using a Cree behind this right?
Well just know a reflector will give the worst artifact ridden sidespill.
So unscrewed drop-in reflector and used a 3/4'' copper pipe to hold the led part against the body tube. The pipe rests on the lens. Use a pipe flairing tool to get it to rest where the reflector would.
And BAM beamshots!
Sidespill is still present but not bad.
Quick and not so Squeaky Clean
I took a 6P lens out, boiling water to loosen the nitrolon lens retaining ring. And removed the reflector from a Cree Dropin Module.
You are planning on using a Cree behind this right?
Well just know a reflector will give the worst artifact ridden sidespill.
So unscrewed drop-in reflector and used a 3/4'' copper pipe to hold the led part against the body tube. The pipe rests on the lens. Use a pipe flairing tool to get it to rest where the reflector would.
And BAM beamshots!
Sidespill is still present but not bad.
aussiebuddha
Enlightened
- Joined
- Aug 26, 2007
- Messages
- 252
Re: 6p lens diameter?
wow, did you do that between the 2 posts? i'm just wondering why you still had sidespill, maybe the lens is just a pcx, not aspheric?
wow, did you do that between the 2 posts? i'm just wondering why you still had sidespill, maybe the lens is just a pcx, not aspheric?
Re: 6p lens diameter?
Yeah I banged it out quick like.
Its probably got sidespill because the asphere isn't close to hemispherical, if that makes sense. More pronounced ashperic shape equals better and brighter.
Can anyone with a big maglite aspheric let us know if there is sidespill?
Yeah I banged it out quick like.
Its probably got sidespill because the asphere isn't close to hemispherical, if that makes sense. More pronounced ashperic shape equals better and brighter.
Can anyone with a big maglite aspheric let us know if there is sidespill?
Gunner12
Flashaholic
Re: 6p lens diameter?
The sidespill is probably the reflected light from the pipe/internal parts that will get lit up by the LED.
You could move the LED closer to the lens for a sharper focus. Great mod!
The sidespill is probably the reflected light from the pipe/internal parts that will get lit up by the LED.
You could move the LED closer to the lens for a sharper focus. Great mod!
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kramer5150
Flashaholic
Hey thats kind of neat... so you adjust the LED-aspheric separation distance with different length copper tubes?
I think Gunner12 may be right since the copper reflects and it was a orangeish ring.
Yes Kramer5150 IIRC its called Back Focal Length. Most aspheric lenses have it stated that way or the more complicated F.L.. Wiki has a nice section on lenses with diagrams.
But if you want to make it right use a less reflective material, or dip it in flat black paint.
I didn't take the time to find the B.F.L. and cut it just right.
I just did it to see if it would work.
Yes Kramer5150 IIRC its called Back Focal Length. Most aspheric lenses have it stated that way or the more complicated F.L.. Wiki has a nice section on lenses with diagrams.
But if you want to make it right use a less reflective material, or dip it in flat black paint.
I didn't take the time to find the B.F.L. and cut it just right.
I just did it to see if it would work.
