... The use of the world 's leading 12mm lens zoom, through the iris test inspection, and the ... skin status directly on the LSD screen directly5.50*lens)detect the nature of skin ,such as : skin ... black acne, pigment sore and so on.6.200*lens) detect the nature of hair, such as plugging ... grease, bacterial infection, and so on. 7.Through the lens around the optical coaxial cold light source, automatic ...