Re: Diffuser for Fenix P2D?
the cheapest way, put a tab (fold over) on the end of a piece of scotch transparency tape (the stuff you can write on), and stick it on the face of it. its just the right ammount of difusion for things like headlamps and to spotty lights.
what might be cool is a piece of VINYL, as long as it stayed clean it would stick on and off easily, and protect the lens while on. with a sheet of the right difussion vinyl sombody could make them in all shapes and sizes and sell them for very little.
along the same idea of the vinyl, is a screensaver, the ultra glare reducing (not clear) screensavers for pdas and p2ps and stuff, you could make many non-adhesive stick ons from one piece. problem with them is they would have to stay meticulously clean, and would be harder to remove.
find a Plastic cap (its in your junk drawer) or find one at the hardware store, preferably the clear ones, white is way to much difussion.
Clear Heat shrink tubing is the right ammount of difusion.
overhead transparencies designed for inkjet printers have microperfs that make them diffused lightly
the white plastic bags from the grocery store work.
the clear top on food products, is just the right ammount too. plastic clear lids