PM sent. 
Fantastic stuff, I have it on throwy lights to broaden out the beam. Two layers gives all spill, no throw. I have heard it absorbs only a few per cent of the light.
Im in for three
I will take 2. PM incoming
I love this stuff. Very useful film! I use it on a bunch of mine lights!
And now I see my message that you have already shipped mine…. WOW, thanks!
Great stuff .
All of my lights except throwers have a layer of this .
Great for close-up work and headlamps .
Thanks for doing this!!! PM Sent!
I would like to see an example of the product being offered. As I understand it, there are different types/levels of diffusion available. Thanks, Ed
[Is this the ‘sand’ or ‘moire’? Product #?]
People just refer to it as “dc-fix” because it seems “sand” is the only one that works well for flashlights. If I’m not mistaken, the others don’t really come close.
Selfbuilt did a test on it on CPF and came up with the 3% loss number .
It's definitely as good or better than any other diffusion material I've ever used . I use it on the S2+ Convoy lights that I originally didn't like as much as the S2 Convoy because they were to floody . This just makes them a beautiful smooth beam which I like much better .
It also kills all those super ugly rings from really ringy lights like the Tank007 566 lights . It took me a long time to start using diffuser film because i somehow thought it was cheating or going to kill a bunch of lumens .I agree with "Jacktheclipper" it's a nice addition to lots of lights .
Certainly one of the cheapest things you can do to dramatically change or fix your flashlights beam pattern .
S -series Convoy tube lights in a nice tint with dx-fix on the lens makes a great 'round the house light
Ah yes, this should be called Mag-Fix. It makes my old MagLite have a nice smooth beam. 
So do you have any beamshots of the film in “action” so to speak?
I am looking forward to getting mine for my Xtar H2 headlamp
It’s good for the xtar but I ended up Using a super heavy film (not DC fix) to get the flood I wanted.
Pm sent. Thanks.
awesome, thanks Boaz. I have DCFix on a couple of lights and it def does the trick.
Again, thanks! Ordered... Look'n forward to trying it out.
Pm sent. Thanks.
Thanks Jeff!
Did you change the emitter as well, or just try the film? Is the DC fix good, but just not good enough for this?
I pls on reflowing a Nichia 219C on mine…