Several days ago I read a thread about Infrared shooting with Canon Digital SLRs, but I did not have time to respond. Anyway, there is a reason that shooting with P&S digitals with infrared filters look different than shooting with Canon DSLRs. The difference has to do with the filtering and tolerances of the digital recording chip. CCD base cameras (read P&S Canons and other manufacturers DSLRs) make better infrared digitals than CMOS based cameras. Something about the tiny glass filters required in front of the recording CCD chip that lets about the same amount of infrared sensitivity as infrared film. CMOS based Canons have different filters and tolerances and don't respond to the infrared light, but instead over a long exposure record the visible light that is getting through the filter (That's why with a 87 filter, you will get a picture with a long enough exposure, but it won't look like a traditional B&W infrared photo). I'm sure there is someone out there who can explain this in a more scientific way, but the bottom line is CMOS camera make poor digital infrared cameras; however, CCD cameras work like a charm.
Cheers, JD BTW, I didn't know this until I bought an expensive 77mm 87 infrared filter and found my 10D photos looking like dull low contrast non-infrared B&W photos. I was disappointed because I had gotten such good results with a smaller 87 filter on my G-1. I then researched info on the web about digital infrared capable cameras. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
