>b. The unexposed DEVELOPED roll ends of Kodak Ektachrome slide film makes a
>passable IR pass filter.  Looks opaque to us, but passes a good bit of IR.
>Talk nice to the people at the photo shop and they'll give you all you can
>use.  Make sure you get slide film though, the exposed developed ends
>of negative film looks the same but is opaque to IR.


I knew I'd heard of this trick, I just couldn't remember what film.

Thanks for the tip!

Cheers,

Win Wiencke
Image Logic Corporation