A History of Cameras & an Introduction to Photography

Written by Chunbum Park

Photography turned the traditional art world upside down when it was introduced in the 19th century. People at the time exclaimed, “How can a photograph equate to a painting? Photography cannot be art!”


Development of Early Photography

The first examples of photography – heliographs, daguerreotypes, and calotypes – involved the exposure to light, of light-sensitive chemicals on a metal plate or paper, inside a camera. At the time, the simplest camera was a dark, enclosed area with an open entry of light through a lens attached to it. The light-sensitive chemicals became less soluble to oil or other solutions the longer they were exposed to light coming from the lens.

Depending on the process, a photographic positive or a negative would be produced as a result. The photographic positive is the final product that accurately represents the image, while a photographic negative is an inverted version of the image, which is used to produce multiple photographic positives.

Portrait of George Eastman // Source: Wikipedia


The Kodak Camera // Source: Camera-wiki.org

We are most familiar with film photography, which was introduced in the form of the Kodak camera by George Eastman in 1888. The original Kodak camera used a roll of film with 2.5 inch diameter, which could take up to 100 round-shaped pictures. Upon using up the entire roll, the entire camera was sent to an Eastman factory for processing and printing.


Famous Photographers of the 20th Century

Bandit’s Roost (1888) by Jacob Riis, from How the Other Half Lives // Source: Wikipedia

Child laborers in glasswork. Indiana, 1908 // Source: Wikipedia

Jacob Riis and Lewis Hine became well known for their documentary photography on social issues, such as the immense poverty endured by the immigrants in New York’s slums and the child labor frequent throughout the East Coast of the United States. Riis and Hine’s straightforward approach established documentary photography as a source of objective facts.


Steichen’s The Pond—Moonlight, multiple gum bichromate print, 1904. // Source: Wikipedia

Edward Steichen and Alfred Stieglitz were among the pictorialists, who wanted to elevate the status of photography to equal fine art. They made use of certain conventions and techniques of painting and printmaking to create their works, including the manipulation of the image using the gum bichromate printing process and retouching with a paintbrush.

Winter – Fifth Avenue (1893) by Alfred Stieglitz // Source: Wikipedia

Wall Street (1915) by Paul Strand // Source: Wikipedia

Alfred Stieglitz later promoted the concept of straight photography, which embraced the innate characteristics of photography, such as sharp focus and avoidance of cropping the image.


However, the followers of straight photography still manipulated the image in the dark room (where the photographs were developed) to achieve high contrast and rich tonality, as well as capturing the underlying geometric structure of subjects. Once popularized by Stieglitz and others such as Paul Strand, straight photography became a major practice of Western photographers, such as Edward Weston and Ansel Adams.

In Germany’s Bauhaus school of art, in the 1920s and 30s, the Hungarian photographer László Moholy-Nagy coined the term “New Vision” to describe the camera as a second eye for observing the world and as a new way of seeing beyond the confines of the human vision.

Lange’s iconic 1936 photograph, Migrant Mother // Source: Wikipedia

In the United States in the 1930s, during the Great Depression, photographers such as Dorothea Lange were employed by the government to document the working and living conditions of the people, as well as the public programs that helped people to find jobs. Lange’s most famous works include the “Migrant Mother,” which became an iconic image of the Great Depression. They helped to convince the middle class of the need to move forward with President Roosevelt’s social programs.


The Designs of DSLR and Mirrorless Cameras

A camera body with an interchangeable lens // Source: Chunbum Park

A digital camera consists of a body and a lens. In most professional camera systems, such as a DSLR or mirrorless, the lens is interchangeable with other lenses for the body. In certain camera models, called compact cameras, which may consist of the same internal designs as a DSLR or mirrorless, the lens and the body are combined into a single design to save weight, reduce size, and increase portability.

The mirror mechanism inside the camera allows the user to see the image through the viewfinder. // Source: Chunbum Park

A DSLR, or digital SLR (single-lens reflex), is a digital camera that has an internal mirror mechanism in the body as a way to see the image captured by the lens through an optical viewfinder, while a mirrorless camera has no mirror mechanism and projects a digital image through an electronic viewfinder.

This key difference from a DSLR means that the mirrorless cameras are typically smaller and lighter than DSLR cameras, and the lens can be smaller and lighter or more powerful on a mirrorless than a DSLR.


Manual Mode and Shooting in RAW in Camera

To take a photograph in manual mode, one needs to adjust the 3 elements of the camera that control the amount of light or brightness, the depth of field (or the range of focus), the motion blur, and the noise level of the final image. The 3 elements are the shutter speed, aperture (the opposite of which is the f-stop), and ISO (or the sensor sensitivity to light).

The Exposure Triangle involving ISO, aperture, and shutter speed // Source: Wikipedia

Shutter speed controls the amount of light and motion blur, depending on how it is used. Longer the shutter speed, the longer the sensor is exposed to light, and the brighter is the image. To prevent a motion blur, the shutter speed must be kept at 1/125th of a second or lower.

Aperture is the size of the hole in the lens that lets in a controlled amount of light into the sensor. Greater the aperture, lower the f-stop, and brighter is the image. Lower the aperture, higher the f-stop, and darker is the image. Higher aperture also means there is a more shallow depth of field (or a smaller range of focus), allowing the foreground and the background to go out of focus and only the subject to remain in focus. Bokeh, or aesthetically pleasing blur, can be observed at higher aperture or lower f-stop, such as f/1.8.

An example of bokeh that is formed behind the woman, in the background. // Source: Chunbum Park

ISO is the sensitivity of the camera’s sensor. Higher ISO means that the image is brighter, but also noisier, due to the higher level of activity of the internal electronics in the sensor. The cleanest image can be typically achieved by setting the ISO to 100.

It is best to take photographs in uncompressed RAW files, rather than JPEG, so that the photos can be edited extensively in Adobe Photoshop or Lightroom. JPEG files get corrupted little bit by bit every time they are edited or resized, so RAW files are the best ways of editing photos, the edited versions of which can also be saved as PSD files (Photoshop files).


Focusing and Framing in Photography

The three main elements of a photographic image are the foreground, background, and the subject. Foreground is the area in front of the subject, and the background is the area behind the subject. When the subject is in focus, usually the foreground and the background are out of focus.

Only the object(s) of main focus are in focus at a very low f-stop (or high aperture), and the image gets brighter. // Source: Chunbum Park

Focusing is an important way of composing the image because it allows the photographer to blur things in and out of focus to create an aesthetically pleasing image. Similar to a painting, in which certain visual elements are put in or taken out, the photographer can choose to put things in and out of focus to change up the composition.


Framing in action // Source: Chunbum Park

Framing is another way of composing in the image, which essentially means that the photographer decides how much of what is in front of him or her should be included in the image. The photographer can edit out unwanted elements from the image by framing the shot or zooming into the subject, away from the unwanted elements.


The Rule of Thirds in Composing a Photograph

The horizon line coincides with the 2nd horizontal line, and the center of the tree coincides with the 2nd vertical line in the composition. // Source: Wikipedia

The Rule of Thirds is the idea that the point(s) of interest should coincide with the (four) lines that divide the photograph into nine evenly-spaced regions, (two) vertically and (two) horizontally. It was first cited by John Thomas Smith, an 18th-Century painter, engraver, and writer, who said dividing up the composition at one-third or two-third was better than at half or at other ratios.

The Rule of Thirds allows the photographer to balance the image into equal parts and avoid mistakes, such as having a tiny subject surrounded by a vast space. However, the photographer can break or improvise upon this rule to create different results, relying on his or her intuition and experience.


Color Balance In Photography

Color can be controlled in the camera via the adjustment of temperature and tint. Temperature controls how intense the yellow’s and the blue’s are, while tint controls how intense the green’s and magenta’s are. In the RGB color space used to represent light, yellow and blue are opposite colors, and green and magenta are also opposite colors.

Usually to take photos outside during daylight, a temperature of 6000K (Kelvins) will depict the colors accurately, while a temperature of 4000K will look too blue, and a temperature of 8000K, too yellow. Under darker circumstances, such as outside at night, the temperature should be lowered to 3000K, for example, as darker colors naturally exhibit a lower temperature.

Increasing tint towards magenta and increasing temperature towards yellow at the same time will cause the photograph to appear more red. Decreasing tint towards green and decreasing temperature towards blue at the same time will cause the photograph to appear more cyan. Increasing tint towards magenta and decreasing temperature towards blue will cause the photograph to appear more purple. And decreasing tint towards green and increasing temperature towards yellow will cause the photograph to appear more yellowish-green.


Editing in Adobe Photoshop

Both Lightroom and Photoshop are great ways of editing photos. Photoshop is better for editing individual photos while Lightroom is better for handling a large volume.

Most of the editing for photographs on Photoshop can be done through the “Camera Raw Filter” tool, which can be found at the top menu bar’s “Filter” section.



Photography is a technically challenging medium that has a long, rich history of inventors, pioneers, and artists. In today’s world, in an age of social networks and social media, professional tools of photography are becoming more accessible to the masses, opening the door of photography to more and more people. Some photographers feel lost in this increasingly loud and competitive world. I believe that photography that is genuine needs meaning that is reflective of our times. A strong photograph should be more than just a pretty picture without meaning.

Photography is a way of seeing beauty in the world that we take for granted. It is a different way of seeing the world – a second eye – as the Hungarian photographer László Moholy-Nagy, who coined the term “New Vision” said.

To all the people out there who are reading this article and wanting to become a photographer, I say “Go for it!” It is the next exciting chapter in your life.





























Chun Park (Chunbum Park) was born in Seoul, South Korea in 1991. He came to the United States in 2000 and attended Montgomery Bell Academy for high school. He briefly attended University of Rochester and Bergen Community College from 2009 to 2011. Since 2011, he has aspired to become a practicing artist and studied at various schools, such as the Rhode Island School of Design, the Art Students League of NY, and the School of Visual Arts. He received his BFA from SVA in 2020.