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This may not be the right forum for this kind of question, but I'd like to know if anyone knows anything
about why you might want to remove the infrared filter on a Canon camera.
I recently edited some footage with a camera that had this done, and the footage was
a big more reddish and soft. What is the advantage to doing this?
Final Cut Pro 7, Mac OS X (10.5.8)
Are you talking about a screw-on aftermarket filter? Do you mean a UV filter? If so, you (or whoever the shooter was) probably didn't white balance the camera after removing the filter. Softness is probably only the ineptitude of the shooter.
Or do you mean some sort of internal filter that required camera surgery?
Camera surgery. Here's a link to more information about it:
http://ghonis2.ho8.com/rebelmod.html
It looks like it deeply cuts down on the contrast, which I'm guessing with
better color correction in post. I just want to know how common this is,
because I'm debating having someone do it on my T2i and 5d mark iii.
Interesting, but it seems like an awful lot of trouble to go through when you could just get a bunch of low-con filters. Here is where I turn into your friendly Uncle Grump offer the thought that you use the proper tools for the job: Want video? Use a video camera.
But hey it's your camera, have at it!
you remove the Infra red filter to allow the camera sensor to detect IR radiation.
If the IR filter is inplace no IR is detected.
the common examples are; photographing scenes of crime, chemical solutions or astronomical images where two cameras produce an IR image and a red image and a comparison is made between the two.
thats the scientific use but no good reason to remove the filter in a non scientific application.
Back in the days of film, there was a type of photography called "infrared photography," wherein photographers used infrared film (which picked up near-infrared light, but not most visible light) in combination with an infrared-pass filter on their lens (which blocked out most visible light, allowing only near-infrared and infrared light to pass). The resulting look is surreal and otherworldly. Some examples are found here: http://www.pbase.com/yp8/some_bw
In the digital era, infrared photography enthusiasts have to use different means. Most digital sensors are capable of picking up infrared light, but camera manufacturers place an anti-infrared filter in front of the digital sensor, because allowing this infrared light to hit the sensor causes blurring, lower contrast, and other generally undesirable effects. Today's infrared enthusiasts often mod their digital cameras by removing this anti-infrared filter from the sensor and placing an infra-red pass filter on their lens, thus creating a digital version of the old film + filter set up.
This is likely what was going on behind the camera you mentioned. Art, not science.
Dear Guys
I have a problem, after I purchased IR720 ( Infrared filter ) app from app store. they wrote if this apps have a function able to see trough under clothes, but it doesnt works at all. its like regular build in camera in my iphone. you guys can search in apps store IR720. I just worry this app is fake or fraud. I already find support from apple support but they dont answer.
could you guys help me for this issue? cause I dont want this happen to other one who purchase this apps.
many thanks
Removing infrared filter
