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ctfchallenge | all galleries >> Challenge 148 - Outside the Box >> Challenge 148 - Exhibition > Big Box
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02-JUL-2007 Michael Shealy

Big Box

Canon EOS D30 ,Canon EF 85mm f/1.8 USM
1/1000s f/9.5 at 85.0mm iso200 hide exif
Full EXIF Info
Date/Time02-Jul-2007 00:43:38
MakeCanon
ModelEOS D30
Flash UsedNo
Focal Length85 mm
Exposure Time1/1000 sec
Aperturef/9.5
ISO Equivalent200
Exposure Bias
White Balance
Metering Modematrix (5)
JPEG Quality
Exposure Programaperture priority (3)
Focus Distance

other sizes: small medium original auto
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ctfchallenge09-Dec-2007 00:30
Correction: In my previous answer to Kelly I wrote: "The IR removal *sensor* on this cam has been removed and been replaced by...". "Sensor" in this sentence should have read "filter". Cheers, -mikey
ctfchallenge08-Dec-2007 16:55
Its done with the Channel Mixer and Levels, b.c. For a full explanation have a look at the lifepixel.com explanation here:http://lifepixel.com/digital-infrared/digital-infrared-photography-instructions.html BTW, Life Pixel is who did the modification on my D30. Oh, yah, the building is the backside of the new County Jail ":^) Thanks for the interest. Cheers, -mikey
ctfchallenge08-Dec-2007 06:59
I was going to say this looks very much like an IR photo Michael, and how did you PP it to make it look so... but now I see your explanation. I used to play with b/w IR film years ago, but it now seems so much more difficult (without h/w modification like your camera). anyhow, very striking image with the characteristic foliage look, and that building looks rather like a big monolith. - b.c.
ctfchallenge08-Dec-2007 05:57
Yes Kelly, it has been modified to capture just IR. The digital sensor without filters is sensitive to both IR and UV, well beyond what we can see. So in order to scale them back to our vision levels, filters are put on the sensor by the manufacturer to approximate our vision. The IR removal sensor on this cam has been removed and been replaced by a filter that blocks visible light. What then is visible to the sensor is anything that will reflect IR. By doing this instead of adding an exterior filter, the light meter/exposure values are more or less normal and shots can be hand held, rather than 10-15 seconds on a tripod. I hope that answers it for you. Thanks for asking. Cheers, -mikey
ctfchallenge07-Dec-2007 21:48
Neat image Michael. Forgive my ignorance and please don't take any offense, but is this camera only able to shoot infrared? - Kelly