Still photography (history)

Define the following parts of a camera: - aperture - lens - shutter

-Aperture :a hole that can be made larger or smaller to control how much light falls on the sensor. This will determine how light or dark the final image is. -Lens: has a fixed focal length while a zoom lens allows users to zoom in closer to a subject. -shutter: determines how long light is allowed to fall on the sensor

Create a brief timeline for the history of photography from 1826 until 1889.

1826 - The first permanent image was produced. • 1839 - The first known photo of a person. • 1847 - The first photos of lightning and war. • 1861 - The first color photograph was produced. • 1878 - The first action photos were seen. • 1889 - The first published photograph was printed in National Geographic.

Who took the photograph above? Why was it taken? What was its purpose?

Ansel Adams is the photographer who tool this picture, He was hired by the Sierra Club to create a book of photographs of American parks. The book was distributed to Congress, and successfully convinced its members to pass legislation that would preserve American parks by creating a number of national parks and preserves

What are Daguerreotypes? Name the photograph below and is photographer. Why is its photographer significant?

Daguerreotypes are early photographs produced on a light-sensitive metal plate coated in crystals. This photograph is by Louis Daguerre, entitled, Shells and Fossils. Louis Daguerre is significant because he invented the process for creating Daguerreotypes. He produced this photographic example, which was the first of its kind.

What is digital photography? How is a digital photograph created? How has digital photography changed the art of photography?

Digital photography is a process in which there is no film yet the image is exposed the same way the digital camera does. With digital photography, the charge-coupling device is exposing light to thousands of little dots that record the light into pixels. The pixels can be recreated or reproduced onto the computer and then printed. Digital photography has opened up the doors for photographers, allowing artists to manipulate images and create images or scenes that may never have existed.

Who invented negative film? Explain how negative film is used in photography.

Negative film was invented by Henry Fox Talbot. Negative film is a roll of film with a gel or lotion over it, with light-sensitive silver-nitrate crystals in the emulsion. When exposed to light, it creates a negative image. When we look at a negative image on film, all the light colors are dark and all the dark colors are light. This image can be duplicated or enlarged onto photography paper that is light-sensitive. Because the paper is light-sensitive, the image appears as a positive image.

Describe the history, process, and importance of photogravure.

Photogravure was invented in 1876. Similar to Intaglio printing, it is printing process in which an image is photographed through a screen on to a sensitized printing plate that after development is etched. Basically, the artist creates a film positive on a piece of film, so it is transparent. Light is then projected through the film positive onto some type of plate or surface, which has a tissue coated with a gel cover. Through a number of exposures and washings, parts of the gel hardens, while other do not. Recessed areas form with each trial that can then be filled with ink for printing. It is important to the history of photography because it is the earliest known form for reproducing photographs on film.

What is the shutter speed? Explain why a photographer may want to use different shutter speeds in different situations.

The shutter speed is amount of time the film is exposed to incoming light. The slower the shutter speed, the more time the film is exposed to light. A photographer would want to use a slower shutter speed if he/she was taking a photo in a dark location, so the light has more time to enter, and vise versa.

Describe the history of the camera.

The term camera come from the Latin term meaning "room" or "chamber". This comes from the Latin term, camera obsura, which mean dark room. The first camera-like object (camera meaning "light writing" in Latin) was originally created by an Iraqi scientist around 1000 AD. He produced a box, or chamber, that had a small hole. When the light, that is reflected of the objects being photographed, enters the chamber, it passes through the hole. It is projected upside down onto a surface in the back of a chamber.

Name the photograph above and its photographer. Explain the process with which it was created. What is this process commonly used for?

his photograph is by Anna Atkins, and is entitled, Woodland Horsetails. Cyanotype is a photographic print in white on a blue ground. It is commonly used for copying maps and architectural plans, which are known as blueprints.