What is a camera?

Introduction: With the development of digital technology, digital technology has appeared among us. A camera is a general term for a device that has the function of imaging through a lens. An ordinary camera that takes a single photo is called an ordinary photography (still life photography) camera, which is different from a movie camera or a television camera. What is a camera?

A camera consists of four parts:

1. The lens for imaging;

2. The shutter that gives a moderate amount of light to the photosensitive material;

3. The viewfinder that determines the scope of photography;

4. The camera body that serves as a container for photosensitive materials and a camera obscura that receives light at the focal plane. When making a camera, you must consider aspects such as shape, weight, and details of each moving part. Even a scale number must be easy to read and understand. Only by considering the user can we produce a truly excellent camera.

The types of cameras can be roughly divided into:

(1) 35 mm small camera.

(2) 35mm single lens reflex camera.

(3) 35mm rangefinder-linked, lens-exchangeable camera.

(4) 35mm half-frame camera.

(5) Pocket camera (110 camera), 126 camera (110 and 126 cameras are both box-loading cameras).

(6) Medium-sized single-lens reflex camera (6?4.5, 6?6, 6?7 cm size).

(7) Medium-sized rangefinder-linked camera (6-7, 6-9 cm size).

(8) Large camera (4-5, 5-7, 8-10 inches size).

(9) Micro camera (extremely small size).

(10) Instant camera.

(11)Disk camera.

(12) Other special cameras.

In China, the 35mm camera is commonly known as the 135mm camera; the medium-sized camera is commonly known as the 120mm camera.