Valokuvaamisella

Valokuvaamisella, or photography, is the art, application, and practice of creating images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. The result is either a negative or a positive print, or a digital image file. Photography is employed in many fields, from journalism and commercial advertising to science and a wide variety of artistic pursuits.

The history of photography dates back to the early 19th century, with the invention of the daguerreotype by Louis Daguerre in 1839. This process involved exposing light-sensitive silver-plated copper sheets to light, creating a permanent image. Over time, photography evolved with the introduction of the wet plate collodion process by Frederick Scott Archer in 1851, and the dry plate process by Richard Leach Maddox in 1871. These advancements led to the development of roll film and the modern 35mm camera in the early 20th century.

In the digital age, photography has seen significant changes. Digital cameras and smartphones have made photography more accessible, allowing people to capture and share images instantly. Digital photography uses an image sensor, such as a CCD or CMOS sensor, to capture light and convert it into an electrical signal, which is then processed into a digital image file. This process has revolutionized the way images are created, stored, and shared.

Photography encompasses a wide range of techniques and genres, including portraiture, landscape, still life, and documentary photography. It is also used in various industries, such as fashion, architecture, and scientific research. The art of photography continues to evolve, with new technologies and techniques constantly emerging, making it a dynamic and ever-changing field.