Carl Zeiss AG is a German company with a long history of manufacturing optical systems, industrial measuring instruments and medical equipment.

The company's name comes from one of its founders, German optician Carl Zeiss (1816-1888).

Carl Zeiss began manufacturing scientific instruments in Jena, a city in southwestern Germany.

After 1866, Carl Zeiss's commercial activities officially began.

A set of microscopic imaging theories proposed by Dr. Ernst Abbe, a researcher at that time, became the scientific basis of the optical industry. Dr. Paul Rudolph, one of Abbe's assistants,

A set of high-performance photographic lenses was developed.

Thanks to these achievements, Carl Zeiss has become a leading company in the field of optical instruments.

Since then, along with highly achromatic lenses (1880s), aspheric mirrors (1930s), astronomical telescopes, binoculars, eyeglasses, surgical microscopes, projection planetographs (1925) and other epoch-making achievements, Carl-

Zeiss remains at the forefront of the optical instrument industry.

Carl Zeiss obtained a patent for an effective anti-reflective coating technology in 1935. This technology is the Carl Zeiss T*, which is considered one of the most significant inventions of the 20th century.

Carl Zeiss AG was founded in Jena in 1846 by Carl Zeiss, Ernst Abbe and Otto Schott

.

Due to World War II, the original company was split into two parts.

One is Carl Zeiss AG in Oberkochen, which has two important affiliated factories in G?ttingen-Aalen and Hallbergmoos.

The other one is Carl Zeiss GmbH in Jena.

Carl Zeiss is the first constituent company of the Zeiss Group (Zeiss Gruppe) and one of the two largest constituent parts of the Carl Zeiss Foundation (Carl-Zeiss-Stiftung).

The Zeiss Group is located in Heidenheim and Jena.

The other constituent companies of the Carl Zeiss Foundation are the glass manufacturers SCHOTT GmbH and Jenaer Glaswerk, located in Mainz and Jena respectively.

Today, Carl Zeiss has grown into Europe's largest optical instrument company, with 14,000 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 applications of lenses cover many fields, including scientific research, industry, imaging, aerospace and national defense.

Carl Zeiss is also used in style photography, film production (analog and digital film), archival photography and quality inspection photography.

Whether on earth or in outer space, it has the best performance in design and performance under any environmental conditions.

Classic Zeiss optical products Since the beginning of the 20th century, Zeiss has developed several lens designs (arranged from wide-angle to telephoto). These designs are classic lens product designs and some have influenced the imaging of an era: Distagon: for

Reverse focus wide-angle lens design, mainly used for 18mm to 35mm, characterized by slight distortion and high central resolution.

Biogon: It is a symmetrical design, specially used for rangefinder cameras. It has average resolution but obvious light loss.

Hologon: A linked rangefinder camera designed for ultra-wide angle, but it has more obvious loss of light than Biogon and needs to be corrected with a filter.

Tessar: "Tessar lens" is a standard lens design, mainly composed of four lenses in three groups. It is characterized by low deformation and thinness.

Planar: Transliterated as "Pu Lan Na" in mainland China, it is designed for standard wide-angle to 135mm medium telephoto lenses. It is a fully symmetrical Gaussian lens with 6 elements in four groups. Initially, it was only f/4.5.

Today's Planar lens has been made to f/1.4. Planer is characterized by perfect chromatic aberration correction, symmetrical design, and extremely low distortion.

Planer was designed by Paul Rudolf in 1896.

Sonnar: Transliterated as "Sonar" in mainland China, it is designed for medium telephoto (135mm) to telephoto (250mm). It is characterized by no spherical aberration, minimal light loss, and deformation so low that it cannot be discerned by the naked eye, but the dispersion must be

APO correction.

Invented by Zeiss optical designer Ludwig Jacob Bertler in [[1931]].

Vario-Sonner is a variable zoom design derived from Sonner.