Photography

The arts, or creative arts, are a vast range of human practices involving creative expression, storytelling, and cultural participation. The arts encompass diverse and plural modes of thought, deeds, and existence in an extensive range of media. Both a dynamic and characteristically constant feature of human life, the arts have developed into increasingly stylized and intricate forms. This is achieved through sustained and deliberate study, training, or theorizing within a particular tradition, generations, and even between civilizations. The arts are a medium through which humans cultivate distinct social, cultural, and individual identities while transmitting values, impressions, judgments, ideas, visions, spiritual meanings, patterns of life, and experiences across time and space.

The arts are divided into three main branches: visual arts, literature, and performing arts. Examples of visual arts include architecture, ceramic art, drawing, filmmaking, painting, photography, and sculpture. Examples of literature include fiction, drama, poetry, and prose. Examples of performing arts include dance, music, and theatre. The arts can employ skill and imagination to produce physical objects and performances, convey insights and experiences, and construct new natural environments and spaces.

The visual arts are art forms such as painting, drawing, printmaking, sculpture, ceramics, photography, video, image, filmmaking, design, crafts, and architecture. Many artistic disciplines such as performing arts, conceptual art, and textile arts, also involve aspects of the visual arts, as well as arts of other types. Within the visual arts, the applied arts, such as industrial design, graphic design, fashion design, interior design, and decorative art are also included.

Current usage of the term "visual arts" includes fine art as well as applied or decorative arts and crafts, but this was not always the case. Before the Arts and Crafts Movement in Britain and elsewhere at the turn of the 20th century, the term 'artist' had for some centuries often been restricted to a person working in the fine arts (such as painting, sculpture, or printmaking) and not the decorative arts, crafts, or applied visual arts media. The distinction was emphasized by artists of the Arts and Crafts Movement, who valued vernacular art forms as much as high forms. Art schools made a distinction between the fine arts and the crafts, maintaining that a craftsperson could not be considered a practitioner of the arts.

A narrative, story, or tale is any account of a series of related events or experiences, whether non-fictional (memoir, biography, news report, documentary, travelogue, etc.) or fictional (fairy tale, fable, legend, thriller, novel, etc.). Narratives can be presented through a sequence of written or spoken words, through still or moving images, or through any combination of these.

Narrative is expressed in all mediums of human creativity, art, and entertainment, including speech, literature, theatre, dance, music and song, comics, journalism, animation, video (including film and television), video games, radio, structured and unstructured recreation, and potentially even purely visual arts like painting, sculpture, drawing, and photography, as long as a sequence of events is presented.

Humanities are important academic disciplines that study aspects of human society and culture, including certain fundamental questions asked by humans. During the Renaissance, the term "humanities" referred to the study of classical literature and language, as opposed to the study of religion, or "divinity". The study of the humanities was a key part of the secular curriculum in universities at the time. Today, the humanities are more frequently defined as any fields of study outside of natural sciences, social sciences, formal sciences (like mathematics), and applied sciences (or professional training). They use methods that are primarily critical, speculative, or interpretative and have a significant historical element—as distinguished from the mainly empirical approaches of science.

The humanities include the academic study of philosophy, religion, history (sometimes considered part of the social sciences instead), language arts (literature, writing, oratory, rhetoric, poetry, etc.), the performing arts (theater, music, dance, etc.), and the visual arts (painting, sculpture, photography, filmmaking, etc.).

An image or picture is a visual representation. An image can be two-dimensional, such as a drawing, painting, or photograph, or three-dimensional, such as a carving or sculpture. Images may be displayed through other media, including a projection on a surface, activation of electronic signals, or digital displays; they can also be reproduced through mechanical means, such as photography, printmaking, or photocopying. Images can also be animated through digital or physical processes.

In the context of signal processing, an image is a distributed amplitude of color(s). In optics, the term image (or optical image) refers specifically to the reproduction of an object formed by light waves coming from the object.

The decorative arts are arts or crafts whose aim is the design and manufacture of objects that are both beautiful and functional. This includes most of the objects for the interiors of buildings, as well as interior design, but typically excludes architecture. Ceramic art, metalwork, furniture, jewellery, fashion, various forms of the textile arts and glassware are major groupings.

Applied arts largely overlap with the decorative arts, and in modern parlance they are both often placed under the umbrella category of design. The decorative arts are often categorized in distinction to the "fine arts", namely painting, drawing, photography, and large-scale sculpture, which generally produce objects solely for their aesthetic quality and capacity to stimulate the intellect.

In European academic traditions, fine art (or fine arts) is made primarily for aesthetics or creative expression, distinguishing it from popular art, decorative art or applied art, which also either serve some practical function (such as pottery or most metalwork) or is generally of limited artistic quality in order to appeal to the masses. In the aesthetic theories developed in the Italian Renaissance, the highest art was that which allowed the full expression and display of the artist's imagination, unrestricted by any of the practical considerations involved in, say, making and decorating a teapot. It was also considered important that making the artwork did not involve dividing the work between different individuals with specialized skills, as might be necessary with a piece of furniture, for example. Even within the fine arts, there was a hierarchy of genres based on the amount of creative imagination required, with history painting placed higher than still life.

Historically, the five main fine arts were painting, sculpture, architecture, music, and poetry. Other "minor or subsidiary arts" were also included, especially performing arts such as theatre and dance, which were counted as "among the most ancient and universal." In practice, outside education, the concept is typically only applied to the visual arts. The old master print and drawing were included as related forms to painting, just as prose forms of literature were to poetry. Today, the range of what would be considered fine arts (in so far as the term remains in use) commonly includes additional modern forms, such as film, photography, and video production/editing, as well as traditional forms made in a fine art setting, such as studio pottery and studio glass, with equivalents in other materials.

A 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.

Most 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.

In photography, exposure is the amount of light per unit area reaching a frame of photographic film or the surface of an electronic image sensor. It is determined by exposure time, lens f-number, and scene luminance. Exposure is measured in units of lux-seconds (symbol lx⋅s), and can be computed from exposure value (EV) and scene luminance in a specified region.

An "exposure" is a single shutter cycle. For example, a long exposure refers to a single, long shutter cycle to gather enough dim light, whereas a multiple exposure involves a series of shutter cycles, effectively layering a series of photographs in one image. The accumulated photometric exposure (H_v) is the same so long as the total exposure time is the same.

Photographic emulsion is a light-sensitive colloid used in film-based photography. Most commonly, in silver-gelatin photography, it consists of silver halide crystals dispersed in gelatin. The emulsion is usually coated onto a substrate of glass, films (of cellulose nitrate, cellulose acetate or polyester), paper, or fabric. The substrate is often flexible and known as a film base.

Photographic emulsion is not a true emulsion, but a suspension of solid particles (silver halide) in a fluid (gelatin in solution). However, the word emulsion is customarily used in a photographic context. Gelatin or gum arabic layers sensitized with dichromate used in the dichromated colloid processes carbon and gum bichromate are sometimes called emulsions. Some processes do not have emulsions, such as platinum, cyanotype, salted paper, or kallitype.

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.

In the case of color negatives, the colors are also reversed into their respective complementary colors. Typical color negatives have an overall dull orange tint due to an automatic color-masking feature that ultimately results in improved color reproduction.

An enlarger is a specialized transparency projector used to produce photographic prints from film or glass negatives, or from transparencies.

Line engraving is a term for engraved images printed on paper to be used as prints or illustrations. The term is mainly used in connection with 18th- or 19th-century commercial illustrations for magazines and books or reproductions of paintings. It is not a technical term in printmaking, and can cover a variety of techniques, giving similar results.

Steel engraving is an overlapping term, for images that in fact are often mainly in etching, mostly used for banknotes, illustrations for books, magazines and decorative prints, often reproductive, from about 1820 to the early 20th century, when the technique became less used. Copperplate engraving is another somewhat outdated term for engravings. With photography long established, engravings made today are nearly all artistic ones in printmaking, but the technique is not as common as it used to be; more than other printmaking techniques, engraving requires great skill and much practice, even for an experienced artist.

The history of art focuses on objects made by humans for any number of spiritual, narrative, philosophical, symbolic, conceptual, documentary, decorative, and even functional and other purposes, but with a primary emphasis on its aesthetic visual form. Visual art can be classified in diverse ways, such as separating fine arts from applied arts; inclusively focusing on human creativity; or focusing on different media such as architecture, sculpture, painting, film, photography, and graphic arts. In recent years, technological advances have led to video art, computer art, performance art, animation, television, and videogames.

The history of art is often told as a chronology of masterpieces created during each civilization. It can thus be framed as a story of high culture, epitomized by the Wonders of the World. On the other hand, vernacular art expressions can also be integrated into art historical narratives, referred to as folk arts or craft. The more closely that an art historian engages with these latter forms of low culture, the more likely it is that they will identify their work as examining visual culture or material culture, or as contributing to fields related to art history, such as anthropology or archaeology. In the latter cases, art objects may be referred to as archeological artifacts.