Analog photography is photography made by a progressive changing image medium; usually one based on chemical processes (photographic film) or on electronic tubes (TV). This was the dominant form of photography for much of its history, but is now being rapidly replaced by digital photography. For the Juanes song, see Fotografía. ... sulfur sucks--207. ... This article or section does not cite its references or sources. ... See TV (disambiguation) for other uses and Television (band) for the rock band European networks National In much of Europe television broadcasting has historically been state dominated, rather than commercially organised, although commercial stations have grown in number recently. ... 10 MP Nikon D200 and a Nikon film scanner The Canon EOS 350D The Canon PowerShot A95 Digital photography, as opposed to film photography, uses electronic devices to record the image as binary data. ...

Definition

As the term analog indicates, light is recorded as a linear chemical process or electric signal. This can be a reaction in a light-activated chemical compound, such as silver nitrate or silver iodide. In electronics this can also be a photoresistor based on cadmium sulfide, germanium or silicon. In this case the amount of electric current passing through the device is dependent on the amount of light that shines on it. Prism splitting light Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelength[1]. The elementary particle that defines light is the photon. ... It has been suggested that this article or section be merged into Analog electronics. ... R-phrases , S-phrases , , , , Flash point non-flammable Supplementary data page Structure and properties n, εr, etc. ... Silver iodide (AgI) is a chemical compound used in photography, an antiseptic in medicine, rainmaking and cloud seeding. ... This article is about the engineering discipline. ... LDR A photoresistor is an electronic component whose resistance decreases with increasing incident light intensity. ... Cadmium sulfide (UK English sulphide), the mineral greenockite, is an hexagonal, yellowish crystal with specific gravity of 4. ... General Name, Symbol, Number germanium, Ge, 32 Chemical series metalloids Group, Period, Block 14, 4, p Appearance grayish white Atomic mass 72. ... General Name, Symbol, Number silicon, Si, 14 Chemical series metalloids Group, Period, Block 14, 3, p Appearance as coarse powder, dark gray with bluish tinge Atomic mass 28. ... Electric current is by definition the flow of electric charge. ...

Analog TV signals can be recorded directly by video camera tube-based cameras, although analog recording has now largely been replaced with digital recording based on charge-coupled devices (CCDs). In older video cameras, before the 1990s, a video camera tube or pickup tube was used instead of a charge-coupled device (CCD). ... A specially developed CCD used for ultraviolet imaging in a wire bonded package. ...

References

• Glenn D. Considine, Van Nostrand's Scientific Encyclopedia, Two-Volume Set, 9th Edition (Hoboken, NJ: Wiley, 2002)
• Peter M.B. Walker, Chambers Technical Dictionary (Edinburgh: Chambers 1999)