Digital Photography and Photographing Ghost
There has been a lot of speculation in this field in regards to the validity of Digital Technology for use in modern research of life after death. In order to validate or dismiss a piece of equipment for this research one must first gain a better understanding of the device in question. What I intend to do is dispel some of the myths in regards to Digital Cameras and show how these devices are better suited for our research than old fashioned film cameras.
A Digital Camera is much like a film camera, it collects light and transfers it to a CCD array as opposed to a piece of film. A charge-coupled device or (CCD) is a light-sensitive integrated circuit that stores and displays the data for an image in such a way that each pixel (picture element) in the image is converted into an electrical charge the intensity of which is related to a color in the color spectrum. For a system supporting 65,535 colors, there will be a separate value for each color that can be stored and recovered. CCDs are now commonly included in digital still and video cameras. They are also used in astronomical telescopes, factory automation, remote fiber optic sampling, Thermo - Triangulation, Infra-red detection, Endoscopes, scanners, bar code readers, and Nasa's Hubble Telescope to name a few. The devices have also found use in machine vision for robots, in optical character recognition (OCR), in the processing of satellite photographs, and in the enhancement of radar images, especially in meteorology.
A CCD is a tiny collection of diodes, which convert Photons into Electrons. These diodes are referred to as photosites. Photosites are sensitive to light; the brighter the light that hits the photosites, the greater the electrical charge that accumulates on that photosite. Photosites on a CCD array are especially sensitive to IR light.
In the past Digital Cameras did not use a CCD array, instead they used a complementary metal oxide semiconductor, or (CMOS) technology. A CCD array uses a special manufacturing process to create the ability to transport charge across the chip without distortion. This process leads to very high-quality sensors in terms of fidelity and light sensitivity. CMOS chips, on the other hand, use completely normal manufacturing processes to create the chip, the same processes used to make most microprocessors. Because of the manufacturing differences, there are several noticeable differences between CCD and CMOS sensors. For one, CCD sensors create high-quality, low-noise images. CMOS sensors, traditionally, are more susceptible to noise. This noise is what has been referred to as "pixel filling." The noise created by CMOS sensors created a grainy, snowy effect on the images. It did not however produce "orbs", or anything remotely the size of the anomalies we capture on film.
In order to help a digital camera adjust the white balance, on some cameras a "hot mirror" is placed on top of the CCD array to block IR light and ease the compensation these cameras make. Not all cameras will have this "Hot Mirror." When using this device for the photography of anomalous activity, you want a camera that does not have the "Hot Mirror" installed on the CCD array. The Toshiba brand digital cameras do not have the "Hot Mirror" installed. If you are uncertain if your digital camera has the "hot mirror" there is a simple test you can conduct. Turn your Digital Camera on as if you are going to take a picture. Point a remote control for a TV or VCR at the lens of the camera. When you press the button if you can see the blinding white light from the remote your camera does not have the "Hot Mirror" on the CCD array and is sensitive to IR light.
"Orbs" are infrared in nature, and most digital cameras are designed to capture IR light. It is only logical to use a device designed to capture IR light for anomalies that are IR in nature. This is simply using the right tool for the job. Considering all CCD arrays are IR sensitive Sony has used them in ALL of their Night Shot products. A Sony "Night Shot" camera, both analog and digital are based on Digital Camera technology.