I have a pair of Tifosi fototecs, which are regular yellow lenses in low light, but transition to tinted in sunlight. It's a bit of a gimmick, but I have found that I'm never thinking "boy, it's bright out", so they actually seem to work well, and the transition is not noticeable when I'm wearing them...so I'm very pleased. Plus, they were a gift from the in-laws, so I'm doubly happy with them. Before I got the Tifosis, I used my old clear shooting glasses, which I think the shooting range comp'd for me...they work, but they're not nearly as comfortable as actual sunglasses.