Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication.

Typically, a lens is used to focus the light reflected or emitted from objects into a real image on the light-sensitive surface inside a camera during a timed exposure. With an electronic image sensor, this produces an electrical charge at each pixel, which is electronically processed and stored in a digital image file for subsequent display or processing. The result with photographic emulsion is an invisible latent image, which is later chemically “developed” into a visible image, either negative or positive depending on the purpose of the photographic material and the method of processing. A negative image on film is traditionally used to photographically create a positive image on a paper base, known as a print, either by using an enlarger or by contact printing.

Abstract photography –

Abstract photography, sometimes called non-objective, experimental or conceptual photography, is a means of depicting a visual image that does not have an immediate association with the object world and that has been created through the use of photographic equipment, processes or materials. An abstract photograph may isolate a fragment of a natural scene in order to remove its inherent context from the viewer, it may be purposely staged to create a seemingly unreal appearance from real objects, or it may involve the use of colour, light, shadow, texture, shape and/or form to convey a feeling, sensation or impression. The image may be produced using traditional photographic equipment like a camera, darkroom or computer, or it may be created without using a camera by directly manipulating film, paper or other photographic media, including digital presentations.

Many photographers, critics, art historians and others have written or spoken about abstract photography without attempting to formalize a specific meaning. Alvin Langdon Coburn in 1916 proposed that an exhibition be organized with the title “Abstract Photography”, for which the entry form would clearly state that “no work will be admitted in which the interest of the subject matter is greater than the appreciation of the extraordinary.” The proposed exhibition did not happen, yet Coburn later created some distinctly abstract photographs.

Landscape–

Landscape photography shows spaces within the world, sometimes vast and unending, but other times microscopic. Landscape photographs typically capture the presence of nature but can also focus on man-made features or disturbances of landscapes. Landscape photography is done for a variety of reasons. Perhaps the most common is to recall a personal observation or experience while in the outdoors, especially when traveling. Others pursue it particularly as an outdoor lifestyle, to be involved with nature and the elements, some as an escape from the artificial world.

Many landscape photographs show little or no human activity and are created in the pursuit of a pure, unsullied depiction of nature, devoid of human influence—instead featuring subjects such as strongly defined landforms, weather, and ambient light. As with most forms of art, the definition of a landscape photograph is broad and may include rural or urban settings, industrial areas or nature photography.

Notable landscape photographers

1. Ansel Adams (American)
2. Colin Prior (British)
3. Michael Kenna (British)
4. Takeshi Mizukoshi (Japanese)

portrait–

A portrait is a painting, photograph, sculpture, or other artistic representation of a person, in which the face and its expression is predominant. The intent is to display the likeness, personality, and even the mood of the person. For this reason, in photography a portrait is generally not a snapshot, but a composed image of a person in a still position. A portrait often shows a person looking directly at the painter or photographer, in order to most successfully engage the subject with the viewer.

Portraiture is a very old art form going back at least to ancient Egypt, where it flourished from about 5,000 years ago. Before the invention of photography, a painted, sculpted, or drawn portrait was the only way to record the appearance of someone. But portraits have always been more than just a record.

Portrait photography is about capturing the essence, personality, identity and attitude of a person utilizing backgrounds, lighting and posing. The goal is to capture a photo that appears both natural and prepared to allow the subject’s personality to show through.