Understand that infrared film is sensitive to infrared radiation, as well as visible light. Since infrared radiation is beyond the red range, we usually use red filters to remove all but the red visible light, so the film receives red visible light and infrared radiation. You can also use opaque filters to cut out pretty much all visible light.
A green filter wouldn't do much of anything. The visible light hitting the film plane would probably overwhelm the infrared radiation, with results very much like normal black and white film. Best would be to start things out by getting a #25 filter and seeing the results from that. Cheers - george ----- http://www.GLSmyth.com http://DRiPInvesting.org --- On Wed 10/08, < bendur...@aol.com > wrote: From: [mailto: bendur...@aol.com] To: pinhole-discussion@p at ??????? List-Post: pinhole-discussion@pinhole.com Date: Wed, 08 Oct 2003 14:39:02 -0400 Subject: [pinhole-discussion] Green filter question Hi everybody.<br>I was wondering, I have bought an old conwy Box camera that I am going to fit a zone plate onto, it comes with a green filter I was wondering what happens if I use this with infrared film? does anyone have an Idea?<br>cheers<br>Ben<br><br>_______________________________________________<br>Post to the list as PLAIN TEXT only - no HTML <br>Pinhole-Discussion mailing list<br>Pinhole-Discussion@p at ???????<br>unsubscribe or change your account at<br>http://www.???????/discussion/<br> _______________________________________________ No banners. No pop-ups. No kidding. Introducing My Way - http://www.myway.com
