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Wednesday, May 05, 2004

tadpole posted a comment on

tadpole posted a comment on this entry about the technique used in taking the photo: "say was the BW shot with or without the IR filter in place? (nightshot??)" Actually, the shot isn't black and white... it's what they call faux color IR. We can't really visualize what color IR looks like because in order for us to see "in infrared" we have to remap the light to something in the visible range. So what we really capture is a visible representation of how IR light reflects off stuff instead of how visible light reflects off stuff. This is why plants are usually a lighter color and the sky is a darker shade... IR light travels and interacts differently that visible light. The further you go into the IR spectrum, the less faux color you have in your images. The coloration, however slight, is due to leakage of near infrared and visible light. The shot was taken in full daylight... just after the first one (in color above it)... with a IR filter in place. Shooting digital IR is much different that shooting film IR, but if you are interested in learning more about the topic, start here and continue on here and here. Feel free to ask me questions, but I obviously don't have all the answers, so experiment! :-)
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