Briefly describe the types and characteristics of cameras?

According to the specifications of the film used, cameras can be divided into 35mm cameras, medium-sized cameras and large cameras. Each has different characteristics and different applications. Understanding their characteristics is very important for choosing cameras according to your own needs. Here is a brief introduction to the characteristics of various cameras:

Features of 1.35mm camera: It uses 135 film with a frame size of 24×36mm, which is the most widely used camera at present. It is light, fast and advanced in function, and supports huge fixed and zoom lens systems with various types. News, travel, scenery, portraits, etc. According to the way of framing, it can be divided into: direct-view camera and SLR camera.

(1) Features of direct-view camera: parallax, limited focal length range of lens used, light shutter sound and small vibration.

1. Pocket camera features: the aperture and shutter are not adjustable, and the lens cannot be changed. It is fully automatic exposure and autofocus, and there are shooting modes to choose from. It can be divided into zoom pocket camera and fixed focus pocket camera. Suitable for ordinary families, travel, etc. Such as: Canon Big Eyes, Dr. Ka Minolta, Olympus μ series.

2. Advanced head-up camera features: It is the earliest model of 35MM camera. Represented by Leica's M series. The aperture and shutter are adjustable, and the lens can be changed. Manual or automatic exposure, manual or automatic focusing, and shooting modes are available. It can be divided into manual focusing and automatic focusing. Manual focusing: the famous Leica M6(M series), the best in the photographer's eyes, the symbol of absolute identity, and the creator of countless legends; Phoenix 205 series, the starting model for students, is inexpensive and has a good reputation. Auto focus: Contax G2\G 1(G series) competes with M6.

(2) Features of SLR cameras: Ignoring the differences, we can use a 6mm fisheye lens to a 1200mm telephoto lens, and view through a system consisting of a reflector and a pentaprism. Before the shutter was opened, the reflector moved, with a loud sound and great vibration. It is the most advanced and perfect camera in technology development at present. 1, auto-focus camera features: auto-focus through the focus point in the viewfinder and half press the shutter. It is highly electronic and has advanced functions. The autofocus point has also developed from the initial 1 point to 45 points today. There are also a variety of automatic exposure modes to choose from. Various functions of the camera need batteries to complete. Auto-focus camera is the mainstream of SLR camera at present. Professional type: Nikon F5, Canon EOS- 1N/ 1N RS quasi-professional type: Nikon F 100, Canon EOS-3, Minolta α-9, advanced amateur type: Nikon F90X, Canon EOS-5, Pentax Z-1.

2, manual focus camera features: manual focus, low degree of electronicization, mostly with the basic functions of the camera, mostly mechanical shutter, no battery. Manual focusing SLR cameras still have a place in SLR cameras. But there are fewer models. Many manufacturers no longer produce manual focusing SLR cameras. At present, the models available on the market are: high-end: Nikon F3, Canon F- 1, Contac RTS-III, Leica R8, R7, R6.2 Mid-end: Nikon FM2, Minolta X-700, and low-end: Nikon FM10/Fe/Kloc-0, Minolta X. Manual focusing is the main function, with less functions. In recent years, Pentax, mamie Ya, etc. A mid-range camera with autofocus has also been introduced. Because of the large film area, it can get better picture quality and is easy to use, so it is chosen by more portrait and landscape photographers. High-end: Hasselblad series (50 1c, 503cw), Lulai series (6008, 6006, 600 1), and mid-end: mamie Ya series (RB67, 645), Pentax series (67 Ⅱ, 645N) and Blue Ocean House series.

Third, the characteristics of large cameras: also known as technical cameras. Using film, there are 4 * 5,8 8* 10/0 and other specifications. The camera is huge and complicated to operate, but the viewing angle and depth of field can be adjusted by adjusting the back of the camera. Polaroid films can be used for pre-shooting. It is selected by many photographers in advertisements, architecture and landscapes. The famous brands are: Xianna, Jinbao, Lin Hafu, etc.

The above is a camera using film. Today, there are many cameras that use special film-Polaroid cameras, and cameras that don't use film-digital cameras: Polaroid cameras: also known as primary imaging cameras. Directly exposed on special photographic paper, you can see photos in one minute, which is suitable for taking pictures.

Digital camera: One of the challenges of traditional photography comes from a digital camera, which uses CCD as a photosensitive element instead of traditional film. It has the characteristics of convenient use, convenient transmission and convenient storage. However, at present, digital cameras are expensive, and the imaging quality cannot be compared with traditional film. If the requirements for pictures are not high, it is mainly used in computers, and digital cameras are a good choice. At present, digital cameras are also widely used in news, advertising and other fields, but the price of the equipment used is very predictable.