A photochromic lens automatically adapts to weather conditions. A category 1 - 3 lens is suitable for all weather conditions. From foggy to sunny weat...
A photochromic lens automatically adapts to weather conditions. A category 1 - 3 lens is suitable for all weather conditions. From foggy to sunny weather, this lens allows you to see all the details in the snow. A spherical lens gives less distortion than a cilindrical (flat) lens.