The types of cameras in the world todayThe types of cameras in the world today mainly include the following categories:
1. [** Digital camera **: This is a widely used camera type.]
- * * DSLR **: It has a large area sensor and high image quality. It can change the lens to meet different shooting needs. For example, it can change the large aperture lens for portrait shooting and the wide-angle lens for landscape shooting. It has excellent body performance. For example, the fast focus function can quickly lock the subject. High-speed continuous shooting can capture wonderful moments.
- * * Digital mirrorless camera (micro-camera)**: Eliminates the mirror structure. The body is small and light, easy to carry, for example, it is easier to carry during travel shooting. The shutter noise is low, suitable for occasions that require a quiet shooting environment, such as meetings, performances, etc. It uses electronic viewfinder mode. The range displayed on the LCD viewfinder screen is the shooting range, so the viewfinder is direct. Some models also had an anti-shake function to improve the stability of the hand-held image.
- * * Card camera (body and lens integrated camera, small ADC camera)**: This type of camera can't change the lens. It's easy to operate and easy to carry. It's often used for daily shooting scenes such as family life photos or snap shots.
2. * * Film camera **:
- * * 135 film single-lens reflex camera **: It was more commonly used in the film era. The 135 frame was a common type of film frame. The negative frame was 24mm × 36mm, and its lens could be disassembled and equipped with other lenses.
- Medium format camera: For example, cameras with 120 and 220 film, the size of the negative film is 6cm × 4.5cm, 6cm × 6cm, 6cm × 7cm, etc. The negative film has a larger frame and better image quality, but the camera is more bulky. It is mostly used by portrait and landscape photographers.
- Large-format camera: For example, Linhaff's large-scale professional camera. This type of camera was large in size and complicated to operate, but it could take high-quality, high-resolution photos. It was often used in commercial photography, architectural photography, and other fields that required extremely high image quality.
3. * * One-time imaging camera (Polaroid)**: A camera that can be taken at any time. The famous brand is Polaroid. You can get photos quickly after shooting.
4. * * Special purpose camera **:
- * * infrared camera **: Capable of capturing infrared light. Different imaging features and application advantages are available in different wave-length ranges.
- * * Ultraviolet camera **: Able to detect violet rays and capture features that cannot be detected using visible light. Because violet rays are absorbed by many materials and have a shorter wave-length than visible light, they will be scattered by the surface features of the product.
- * * High-speed camera **: Captures moving images with extremely short exposure time or high frame rate. It can be divided into two categories: real-time transmission of video and subsequent transmission of data. It can be selected according to the duration and requirements of the shooting event. It is often used to capture high-speed moving objects, such as fast movements in sports events and instantaneous phenomena in scientific experiments.
- * * Polarizing camera **: Captures the polar information of the object in the image through four different angles of the polar film, which can be directly reflected in the captured image. It can detect reflective surfaces such as glass and metal, and can also be used to detect stress.
- * * Camera-capable mobile phone **: With the development of mobile phone technology, the mobile phone camera has become a common shooting tool. It is portable and its functions are constantly improving. It can meet many daily shooting needs.
- * * Single-use camera **: Single-use, simple and convenient to use, suitable for situations where a camera is needed for shooting.
- * * Microscope camera **: Used to take pictures of microscopic objects, widely used in medicine, biology and other fields.
- * * Industrial camera **: suitable for inspection and monitoring in industrial production processes.
- * * Medical camera **: It is used in the medical field to take medical images, such as an arthroscope camera.
- * * Underwater camera **: It is specially used for underwater shooting. It is waterproof and can adapt to underwater environments.
- * * Aerial camera **: Used in the aviation field to take aerial photos, such as topographic surveying, military reconnaissance, etc.
- * * Space camera **: used for shooting in space missions, such as taking pictures of the Earth's surface, cosmic celestial bodies, etc.
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Rebuilding Confucianism and the World Today"Rebuilding Sven: Confucianism and the Modern World (revised edition)" was a book written by Peng Guoxiang about Confucianism and the contemporary world. The book gathered the author's thoughts on the culture and value of the times. Based on Confucianism, it examined the relationship between Confucianism and the times in a global perspective. The author showed his concern and value for culture. The book received a high rating on Douban. However, the specific content and views of the book, as well as the discussion of Confucianism and the contemporary world, required further reading to get a more detailed understanding.
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