Why is a Dual-Zone lens best for golf?
The science behind Dual-Zone lens technology is based on the principal that it is impossible for a single-tint sunglass lens to optimize your vision for both the bright sky and the relatively darker grass turf. When you take illumination measurements on the golf course with a digital light meter, the lighting extremes range from 82,732 LUX for the sky down to only 3,122 LUX for the grass turf, less than 4% of the ambient brightness in the sky. The typical single-tint amber lens is perfect for enlightened visualization of the putting surface and to enhance contrast sensitivity for improved green-reading…but the sky remains uncomfortably bright (62,440 LUX) and colors are distorted, which negatively affects distance perception. The typical single-tint gray lens reduces the brightness of the sky down to a visually comfortable 14,460 LUX. But the gray lens also reduces the illumination of the putting surface to a mere 1,195 LUX, far too dark for accurate green reading. PeakVision Sports’
