Full Spectrum Cameras
Visible and Near Infrared Light



 
Ghost Hunting Equipment: Full Spectrum Cameras
Visible and Near Infrared Light

A full spectrum camera is a device used to pick up visible and near infrared light. This device can pick up non-visible ultraviolet (UV) and infrared (IR) radiation. Once the camera is sensitive to the full-spectrum, external filters can be used to selectively filter portions of the UV, visible and infrared to achieve various effects.

These cameras are used in Ghost Hunting, photography, archeological findings and even with the police to help find forensic evidence.

Full Spectrum Cameras

Full-spectrum light is light that covers the electromagnetic spectrum from infrared through near-ultraviolet, or all wavelengths that are useful to plant or animal life; in particular, sunlight is considered full spectrum, even though the solar spectral distribution reaching Earth changes with time of day, latitude, and atmospheric conditions.


Digital sensors and photographic films can be made to record non-visible ultraviolet (UV) and infrared (IR) radiation. In each case, they generally require special equipment: converted digital cameras, specific filters, highly transmitting lenses, etc. 

For example, most photographic lenses are made of glass and will filter out most ultraviolet light. Instead, expensive lenses made of quartz must be used.

Infrared films may be shot in standard cameras using an infrared pass filters, although focus must compensate for the infrared focal point.

A converted digital camera usually requires that the infrared hot mirror be removed and replaced by a wideband, spectrally flat glass of the same optical path length.

Typical glass types used include Schott WG-280 and BK-7, which transmit as much as 90% from around 300nm to past 1000nm. Removing the hot mirror is tedious and may require special tools and clean rooms.

Once the camera is sensitive to the full-spectrum, external filters can be used to selectively filter portions of the UV, visible and infrared to achieve various effects.

For example, a standard red #25a can be used to include red light and infrared light together, yielding particularly strong two-toned color images of a reddish nature except where the infrared is high and shows as cyan. 

 


Full Spectrum

Full-spectrum is a subset of full-spectrum imaging, defined currently among photography enthusiasts as imaging with consumer cameras the full, broad spectrum of a film or camera sensor bandwidth.

In practice, specialized broadband/full-spectrum film captures visible and near infrared light, commonly referred to as the “VNIR”.


Another example, using UV/IR filters such as the 18A or U-330 yield a two or three toned image in which blues and yellows dominate.

Less common filters have been claimed to give a variety of color effects ranging from diverse pastel foliage and deep blue skies to surrealistic effects of the sky and ground, though digital image processing is likely required to achieve the full effects.

One issue with Full-spectrum on converted digital cameras is the chromatic aberration of the wideband information. That is, different colors, including the ultraviolet and infrared, will focus at different focal points, yielding blurry images and color edge effects, depending on the focal length used.

Full-spectrum photography achieves various effects and surrealistic colors from the interaction of reflectivity (UV, visible, IR) of nature and manmade materials and the specific spectral transmission of the red, green and blue filters on the camera. The addition of external filters will reduce and emphasize different interactions, yielding different effects
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String Theory and Ghosts - The Elegant Universe - Strings the Thing


String theory is a developing theory in particle physics that attempts to reconcile quantum mechanics and general relativity. It is a candidate for the theory of everything (TOE), a manner of describing the known fundamental forces and matter in a mathematically complete system.

The theory has yet to make quantitative experimental predictions, which a theory must do in order to be confirmed or falsified.


String theory mainly posits that the electrons and quarks within an atom are not 0-dimensional objects, but rather 1-dimensional oscillating lines ("strings").

The earliest string model, the bosonic string, incorporated only bosons, although this view developed to the superstring theory, which posits that a connection (a "supersymmetry") exists between bosons and fermions.

String theories also require the existence of several extra, unobservable, dimensions to the universe, in addition to the usual four spacetime dimensions. The theory has its origins in the dual resonance model (1969).

Since that time, the term string theory has developed to incorporate any of a group of related superstring theories.

Five major string theories were formulated. The main differences between each of them were the number of dimensions in which the strings developed and their characteristics, however all appeared to be correct.


String Theory and Ghosts

In very simplistic terms if string theory is correct there are up to 11 dimensions. Gravity is so weak compared to the other three forces we know about because most of its energy goes into other dimensions we cannot experience.

Therefore could there be other forces we are not aware of that go wholly into other dimensions? It is said our 3D experience maybe like being fish in a bowl. Could whole other experiences of the Universe be going on all around us in these other dimensions?

When we die in our 3 dimensions does all our energy (given the above) necessarily die in the rest? Could strange phenomenon such as ghosts be explained as certain pockets of space & time where for some reason we can experience, see or feel other dimensions whether this be human, past lives, or unrelated beings or forces?

Is it possible that devices such as full spectrum cameras can actually view energy of a soul which is living in another dimension? There are theories that spirits are energy and this energy may be moving much more quickly in another dimension then what we experience in ours.

String theory may actually help prove the existence of spirits (energy) which live in another dimension and devices such as full spectrum cameras may actually be able to "peek" into this dimension.


In the mid 1990s a unification of all previous superstring theories, called M-theory, was proposed, which asserted that strings are really 1-dimensional slices of a 2-dimensional membrane vibrating in 11-dimensional space.

As a result of the many properties and principles shared by these approaches (such as the holographic principle), their mutual logical consistency, and the fact that some easily include the standard model of particle physics, some mathematical physicists (e.g. Witten, Maldacena and Susskind) believe that string theory is a step towards the correct fundamental description of nature.

Nevertheless, other prominent physicists (e.g. Feynman and Glashow) have criticized string theory for not providing any quantitative experimental predictions.

 




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