What is the "carl zeiss" lens? [photography]

The imaging quality of digital camera mainly depends on the following three components: lens, CCD and image processing engine. Among them, the lens is the main receiving source of external light, and its quality directly affects the clarity and sharpness of imaging. Some digital camera manufacturers use their own lenses, while others use lenses produced by other professional manufacturers. The latter situation is still relatively common in the industry at present. Representative examples are Samsung's schmid lens, Sony's carl zeiss lens, Panasonic's Leica lens and Fuji's Canon lens. Today, I mainly introduce the carl zeiss lens used by Nokia on N90 mobile phone. Carl zeiss is a large German international enterprise, which is famous for producing optical products such as lenses and film cameras. Carl zeiss's glorious course in the history of lens manufacturing began in 1890 when the company's engineers invented the aspheric lens. In the same year, Protar lens came out; 1896, the plane lens came out, which established carl zeiss's authoritative position in chromatic aberration correction technology. 1902, Zeiss factory designed a Tessar lens, 1:6.3. This lens is sharp and sharp, and the imaging quality is quite good. As an old optical enterprise with a history of 150 years, carl zeiss is also famous in the medical manufacturing industry. Its microscope, magnifying glass, medical endoscope, camera lens, glasses and other products are very famous in the world. Among them, the lens of Zeiss Factory has always been famous for its vivid imaging, clear details, bright surface, excellent anti-color cast and anti-reflective performance. Next, we will briefly introduce some of the most representative models selected from more than 100 camera lenses produced in carl zeiss. * Plane (plane lens) double Gaussian lens, which can correct all kinds of lens aberrations well. Since then, the design of standard lenses of various brands produced all over the world has benefited from Planner. *Sonnar (sonar lens) has deep detail fidelity and color balance skills. Different from the flat lens, Sona's imaging performance is more detailed and sharp. It is usually used to take photos and movies. *Distagon lens has a very wide field of view, and its wide-angle and telephoto performance are very good. It is also often used in photos and movies. *Tessar consists of three groups of four lenses. The final image is not only bright and transparent in the central part, but also clear in the details in the corner area, which is suitable for photo shooting. *Biogon (Biogon lens), a lens invented by Dr. Meta, caused great repercussions in the industry at that time. The biggest feature of the lens is that its wide-angle end will hardly produce lens distortion. * Hologon lens does not support large aperture, but the distortion of the lens at the wide-angle end is almost zero, and the imaging performance is excellent. In fact, many digital cameras are equipped with lenses made in carl zeiss. Take Sony as an example, its high-end models have never used lenses of other brands except carl zeiss. Although there is also a saying in the industry that Sony does not directly use carl zeiss lenses, but only introduces some optical technologies from Zeiss to produce them, it is certain that the lenses of Sony cameras are deeply influenced by carl zeiss in terms of appearance design and internal technology. Thanks to carl zeiss's technology, Gensonnie's high-end camera lens is excellent in imaging degree and expressive force. Among the newly released products, Sony's Cybershot F828 and Kyocera's Contax SL300R are equipped with carl zeiss T* lenses. References:

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