What are the classifications of cameras? What does a SLR camera mean?

The detailed classification of cameras is as follows:

1. Depending on the imaging medium of the camera.

It can be divided into film cameras, digital cameras and Polaroid cameras. Film camera mainly refers to the equipment that images through lens and records images with film.

Digital camera is a photographic equipment that uses semiconductor photoelectric coupling devices and digital storage to record images. It has the characteristics of convenient use, convenient photo transmission and convenient storage. Polaroid camera, also known as primary imaging camera, directly exposes images on special photographic paper, and can see photos in one minute, which is suitable for taking pictures.

2. According to the film and picture size used by the camera

It can be divided into 35mm camera (often called 135 camera), 120 camera,10 camera, 126 camera, medium camera, large camera, APS camera and miniature camera. 135 camera uses 35mm film, and its standard frame is 24mm X 36mm. Generally, 36 or 24 shots can be taken per film.

3. According to the appearance and structure of the camera

It can be divided into viewfinder camera and SLR camera (SLR camera). In addition, there are folding cameras, double-lens reflex cameras, rangefinder cameras, conveyors, landlines and so on.

4. According to the shutter form of the camera

It can be divided into lens shutter camera (also known as center shutter camera), focal plane shutter camera and program shutter camera.

5. According to the function and technical characteristics of the camera.

It can be divided into auto-focus camera, manual exposure camera and automatic exposure camera. In addition, there are shutter priority, aperture priority, program control, double priority, electric film winding (automatic film winding and rewinding) camera, automatic focus (AF) camera, date back camera, built-in flash camera and so on.

Sometimes it can also be divided according to the use of cameras, such as professional cameras and consumer cameras (fool cameras), one-step imaging cameras and stereo cameras; Sometimes it can also be divided into zoom or bifocal cameras according to the characteristics of the lens. In fact, a modern camera often has many characteristics, so it should be defined comprehensively.

It can be roughly divided into five categories: SLR cameras, digital cameras, micro-cameras, film (card) cameras and sports cameras.

SLR camera refers to a camera that uses a single lens, through which light shines on the reflector and takes a view through reflection. The so-called "single lens" means that the photographic exposure light path and the framing light path * * * use one lens, unlike the paraxial camera or the double-reflex camera, the framing light path has an independent lens.

Extended data:

The difference between micro-single and SLR, card machine and digital machine;

1, micro-single and SLR

The main difference between micro-single and SLR is that micro-single has no reflector, so it is relatively smaller and more portable. The advantages of SLR optical imaging are fast focusing and quick response, which is suitable for snapshot.

Micro-single lens is smaller in size, and its imaging is basically comparable to that of digital SLR, but the response of framing is slow, which may bring difficulties to sports shooting. The size of the other lens is also smaller, which is smaller than the SLR structure, so the imaging of the lens is not so good, but it is no problem to meet the needs of home.

2. Microfilms and cards

Micro-single can be understood as a card machine that can change lenses, but the function of micro-single is stronger than that of card machine, and the picture quality is better, but the requirements for operation are higher, which can be understood as a small version of SLR.

But in some operations, theoretical knowledge can almost communicate with SLR. If you have a certain photography foundation, or have a week-long photography, it is recommended to have a micro-list, but if you are just visiting here, you should stick to it and be smaller.

3, micro single and digital

The biggest difference is that the size of CCD is different. Digital cameras are usually called card machines, mainly because CCD sensors are small in size and high in pixels per inch, while micro-single sensors are usually more than four times the size of CCD of digital cameras, and the single pixel area is large, so the imaging quality is high.

? Baidu encyclopedia-camera

? Baidu Encyclopedia-Single lens reflex camera

Baidu Encyclopedia-Dan Wei