I often get asked if the hot mirror should be removed from a
digital camera to photograph auras. Digital cameras are as sensitive to near
infrared radiation as they are to visible light, so ALL are fitted with an
internal infrared blocking filter or hot mirror. If the hot mirror is removed the
camera is HIGHLY UNLIKELY to photograph auras simply because it will flood with
the full spectrum of infrared and we won't be able to see the infrared
generated by buried metal. Removing the hot mirror does have an application for
false color photography, which may show ground anomalies but this is very
different to aura photography. For aura photography, what we are looking for is
the older, lower specification digital camera, where the hot mirror is less
efficient then the higher spec and more up to date camera and will allow enough
infrared through to show an aura in the photograph.
I have invited treasure hunters and researchers to come
forward with their tests on digital cameras for photographing auras but
unfortunately I still have no reliable information on cameras other than Canon
and Olympus , although recently I have seen
some encouraging results from Nikon cameras.
