For our Members who'd like to convert their lamps and torches to dim red, in order to preserve their night-adapted eyesight (a very important bit of ettiquette at star-parties), we've bought a couple of sheets of polyester-film filters:

• 106 "Primary red" (http://www.rosco.com/includes/filters/SED.asp?titleName=E106:%20Primary%20Red&imageName=../../images/filters/ecolour/106.jpg)
• 029 "Plasa red" (http://www.rosco.com/includes/filters/SED.asp?titleName=E029:%20Plasa%20Red&imageName=../../images/filters/ecolour/029.jpg)

Let me know if you need any.