Bought these actually only to see what the Emerald lensen looked like. Here in The Netherlands I find the usual store collections very limited. They only seem to have the "duller" lenses like grey, brown or black. In real life however, I very much like them! Nice uridium coating. Bought these to wear in the car as they seem to increase contrast. Will check that later, just unpacked the box! The JetBlack finish of the frame is very nice, much better than the CrystalBlack XX I also have.