Traditional Culture Encyclopedia - Photography and portraiture - Why is Ke Mei's lens not good?

Why is Ke Mei's lens not good?

Lack of basic dustproof and moistureproof performance. Ke Mei lens is not good because it lacks basic dustproof and moistureproof performance. Ke Mei was established in 2005, headquartered in Hongkong, China, with branches and offices in China. After years of efforts, the company has developed into a high-tech enterprise specializing in the production of photographic equipment.