The parts of a camera and their functions

Photographs allow us to capture events and moments in time and preserve them for years. This is made possible by the use of cameras. A camera is a technological device for obtaining photographic images of objects of interest.

This device consists of three basic elements: the mechanical element (the camera body itself), the optical element (the lens) and the chemical element (the film). [although there are also digital cameras that don’t make use of the traditional film]). All of the other numerous parts and components that make up a camera are simply there to support or enhance one of the core functions mentioned above.

Below are 15 functional components of a camera, of which I will explain the function of 10 below.

1. The camera body

2. Lens

3. Movies

4. Viewfinder

5. The clasp

6. Aperture

7. Trigger

8. Roller shutter curtains

9. Shutter Speed ​​Adjustment Knob

10. Film cavity

11. Film rewind button

12. Film sprockets

13. Hot shoe (accessory socket)

14. Focus ring

15. Self-timer button

(1) The camera body: All internal mechanical, optical and chemical parts of a camera are held together by the camera body. This is to protect these very sensitive parts. The camera body also serves as a frame against which the other parts of the camera articulate to function properly.

(2) The lens: The lens is undoubtedly the most important component of the camera (considering the main purpose of a camera). The lens captures the rays of light reflected from an object and focuses that light onto the image plane, creating a real image that can be photographed. The majority of the modifications and refinements that have been made to the camera since its invention have been focused on or around the lens, and this underscores the importance of this part of the camera.

(3) The Film: This is a thin roll of light-sensitive plastic that is placed on the image plane of the lens. When the camera is ready to shoot, several pieces of equipment work together to ensure that the image produced by the lens is exposed to film. When the film is exposed to the image coming out of the lens, it records the image and we have images! Before and after use, the film is stored in a light-tight film holder. Unknown to most people, there are no black and white or color cameras. We only have black and white and color film. It’s the film that determines whether an image comes out black and white or color.

(4) Viewfinder: This is the part of the camera that helps us decide which object to photograph. It helps us point the camera in the right direction and indicates what will or will not appear in the final photo. There are two types of viewfinders: (1) those that operate independently of the lens, known as aim-and-shoot cameras; (2) Those that show exactly what the lens sees are found in single lens reflex (SLR) cameras.

(5) Shutter: The shutter determines how long the film is exposed to light or the image coming from the lens. There are two types of shutters: the one located just behind the lens, called the leaf shutter; The second type is in front of the film plane and is called a focal plane shutter. The shutter consists of two metal sheets or “curtains” that stay closed or closed when the camera is not in use. But when the shutter button is pressed, one of those curtains slides open to allow the image from the lens to hit the film. After a moment, the second curtain panel slides in and closes the opening. The interval between opening and closing depends on the speed we selected with the shutter speed knob.

(6) Aperture: This is an opening or hole in the center of the lens. The function is to lighten or darken images evenly. This is accomplished by increasing or decreasing the size of the hole using a knob called the aperture ring. As the opening increases, more light passes through the lens, making the image brighter. Conversely, reducing the opening lets in less light, dimming the image or image.

(7) Hot shoe (or accessory socket): This is the hook to attach a flash to if you want to use a flash and the camera supports it. This accessory is located just above the viewfinder.

(8) Focus Ring: When we look through the viewfinder, the focus ring is used to bring the subject into focus. It’s more like an adjuster.

(9) Film Bay: This is where the roll of film is inserted into the camera. This cavity is protected from light. It’s a kind of darkroom designed to ensure that only the light coming through the lens falls on the film, and only when the shutter is open. This is important because the film cannot distinguish between light from the lens and light from other sources. Without this cavity, ambient light would easily hit the film and degrade image quality.

(10) Film Rewind Knob: This knob is used to feed all exposed rolls of film back into their housing. This must first be done before the exposed film is removed from the camera; otherwise the negative will be ruined! Some modern cameras perform this function automatically as soon as we take the last shot.

Summary: A camera helps us preserve memories. Understanding how the different parts of this device work will help us get the most out of our cameras.

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