Carl Zeiss lens is produced in which country? What is a good thing?

Carl Zeiss is a German company with a long history in manufacturing optical systems, industrial measuring instruments and medical equipment. The name of the company comes from one of its founders, carl zeiss (18 16-1888). Then, carl zeiss began to make scientific instruments in the southwestern German city of Jena. After 1866, commercial activities in carl zeiss officially started. A set of microscopic imaging theory put forward by a researcher at that time, Dr. Ernst Abbe, became the scientific basis of the optical industry. Abbe's assistant, Dr. paul rudolph, has developed a set of high-performance photographic lenses. Thanks to these achievements, carl zeiss has become a top company in the field of optical instruments. Since then, with epoch-making achievements such as achromatic lens (1880s), aspherical mirror (1930s), astronomical telescope, binoculars, glasses, surgical microscope and projection planetarium (1925), carl zeiss has been able to walk in the forefront of the optical instrument industry. Carl zeiss obtained an effective patent for anti-reflective coating technology in 1935, which is considered as one of the most important inventions in the 20th century. Carl zeiss Company was founded in Jena on 1846 by carl zeiss, Ernst Abbe and Otto Short. Because of World War II, the original company was divided into two parts. One is carl zeiss Company in Oberkochen, which has two important subsidiary factories in Allen, G? ttingen and Moss, Halberg. The other is carl zeiss Co., Ltd. in Jena. Carl Zeiss is the first component of Zeiss Group and one of the two major components of Carl Zeiss-Carl Zeiss Foundation. Zeiss Group is located in Heidenheim and Jena. Other companies of the carl zeiss Foundation are the glass manufacturer Short Co., Ltd. and Janel Glasweck Company, which are located in Mainz and Jena respectively. Today, carl zeiss has developed into the largest optical instrument company in Europe, with 14000 employees and factories and subsidiaries in more than 20 countries, including Japan and the United States. Carl zeiss produces a large number of high-performance lenses. The application of lens covers many fields such as scientific research, industry, imaging, aerospace, national defense and so on. Carl zeiss is also used for style photography, film production (analog film and digital film), archive photography and quality inspection photography. No matter on earth or in outer space, it has the best design and performance under any environmental conditions. Classic Zeiss optical products Since the beginning of the 20th century, Zeiss has developed several lens designs (from wide-angle to telescopic arrangement), all of which are classic lens product designs, some of which have influenced the images of an era: Distagon: an anti-focus wide-angle lens design, mainly used in 18mm to 35mm, characterized by slight deformation and high central resolution. Biogon: Symmetrical design, specially designed for paraxial cameras, with average resolution but obvious light loss. Hologon: It is specially used for ultra-wide-angle continuous ranging camera, but it has more obvious optical loss than Biogon, and needs to be corrected by filter. Tessar: "Tiansai lens" is a standard lens design, which is mainly composed of four lenses and three groups of lenses. Its characteristics are: small deformation and light weight. Planar: transliterated as "Planar" in Chinese mainland, it is designed for a standard wide-angle lens with a telephoto angle of 135mm. It is a fully symmetric Gaussian lens with six lenses and four groups. At first, it was only f/4.5. Today, the flat lens has achieved f/ 1.4. Planer is characterized by perfect color difference correction, symmetrical design and extremely low deformation. The planer was designed by paul rudolph in 1896. Sonnar: Chinese mainland's transliteration is Sona, which is the design from the intermediate telescope (135mm) to the telescope (250mm). It is characterized by no spherical aberration, minimal light loss and small deformation, but the dispersion must be corrected by APO. It was invented by Zeiss optical designer Ludwig Jacob Beightler in [[ 193 1 year]]. Vario-Sonner is a zoom design derived from Sonner. Tele-Tessar: Designed for a super telescope (above 250mm) derived from Tessar, it is characterized by no spherical aberration, extremely low deformation, extremely small optical loss and few lens components. The lens is at least 300mm F/2.8, and only 7 lenses are used. Mirotta: This is an ultra-long reflection lens. General photography is 500mf/8, and the space is 500mmf/4.5 and1000mf/5.6. Super achromatic: specially designed for the best achromatic lens at present, only used for Hasselblad camera. Mutar: 1.4x and 1.7x double mirrors, which are used for Rolleiflex dual-lens reflex camera and Rollei 16 miniature camera respectively. At present, they are only used for Sony's digital cameras. Mutargon: zoom lens (also known as wide-angle lens), which is currently only used for Sony's digital cameras. T* coating: multilayer anti-reflection coating, jointly developed by Chase and Rollei.