Pulling out the infrared light in a photo might clean things up, but it can't save a blurred picture. Photo credit Preston Scott. Infrared light. Good for: remote controls, keeping lizards warm, detecting Arnie in Predator. Bad for: your photos. The fix? An IR filter.
There are two kinds of IR filter — the one in your DSLR that blocks IR light, and the kind you use on a camera flash or over a lens to pass only infrared light, to spooky effect.
Gadget Lab, iPhone 4S Camera Cleans Up With Infrared Filter
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