Does the subject want to ask "there is radiation zlogo on Zeiss lens?" Yes Zeiss digital lens is specially developed to relieve the eye pressure caused by digital equipment, mainly for people aged 30 to 45, which can reduce their eye adjustment ability by 30 to 40 years and make people who use digital equipment for a long time nervous and tired. Know quickly according to the query. There's radiation on Zeiss lenses, zlogo. Its shape is similar to two small flags combined together. This anti-counterfeiting mark can be seen directly near the edge of the lens. Is the company's guarantee to users.