Polaroid CorporationPolaroid Corporation was an American company that made instant film and cameras, which survives as a brand for consumer electronics. The company was founded in 1937 by Edwin H. Land, to exploit his Polaroid polarizing polymer. Land and Polaroid created the first instant camera, the Land Camera, in 1948. Land ran the company until 1981. Its peak employment was 21,000 in 1978, and its peak revenue was $3 billion in 1991.
PhotographA photograph (also known as a photo, or more generically referred to as an image or picture) is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor. The process and practice of creating such images is called photography. Photographs are now created using a smartphone or camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would perceive.
Photographic filmPhotographic film is a strip or sheet of transparent film base coated on one side with a gelatinemulsion containing microscopically small light-sensitive silver halide crystals, for the purpose of taking photographs. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and resolution of the film. Film is typically segmented in frames, which give rise to separate photographs.
Negative (photography)In photography, a negative is an image, usually on a strip or sheet of transparent plastic film, in which the lightest areas of the photographed subject appear darkest and the darkest areas appear lightest. This reversed order occurs because the extremely light-sensitive chemicals a camera film must use to capture an image quickly enough for ordinary picture-taking are darkened, rather than bleached, by exposure to light and subsequent photographic processing.
ReagentIn chemistry, a reagent ( ) or analytical reagent is a substance or compound added to a system to cause a chemical reaction, or test if one occurs. A reactant is a substance or compound that is consumed in a chemical reaction.
135 film135 film, more popularly referred to as 35 mm film or 35 mm, is a format of photographic film with a film gauge of 35 millimetres (1.4 inches) loaded into a standardized type of magazine (also referred to as a cassette or cartridge) for use in 135 film cameras. The term 135 was introduced by Kodak in 1934 as a designation for 35 mm film specifically for still photography, perforated with Kodak Standard perforations.Positive (photography)Positive has multiple meanings in the world of photography. The two main definitions of positive photography include positive space and positive film.
Film speedFilm speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system introduced in 1974. A closely related system, also known as ISO, is used to describe the relationship between exposure and output image lightness in digital cameras. Prior to ISO, the most common systems were ASA in the United States and DIN in Europe.
Large formatImaging format of 4×5 inches or larger Old studio camera Lens and mounting of a large format camera Comparison of 35 mm, medium format, and large format Large format photography refers to any imaging format of 9 cm × 12 cm (3.5 in × 4.7 in) or larger.Film holderA film holder is an accessory that holds one or more pieces of photographic film, for insertion into a camera or optical scanning device such as a dedicated film scanner or a flatbed scanner with film scanning capabilities. The widest use of the term refers to a device that holds sheet film for use in large format cameras, but it can also refer to various interchangeable devices in medium format or even 135 film camera systems.
PassportTravel document for international travelClockwise, from top left: Dutch ordinary, Nepalese diplomatic, Chinese service, and Polish ordinary passportsA passport is a formal travel document issued by a government that certifies a person's identity and nationality for international travel. A passport allows its bearer to enter and temporarily reside in a foreign country, access local aid and protection, and obtain consular assistance from their government.Photographic processingPhotographic processing or photographic development is the chemical means by which photographic film or photographic paper is treated after photographic exposure to produce a negative or positive image. Photographic processing transforms the latent image into a visible image, makes this permanent and renders it insensitive to light. All processes based upon the gelatin silver process are similar, regardless of the film or paper's manufacturer.*As an Amazon Associate I earn from qualifying purchases.