The Secret Behind Adjustable-Tint Lenses At the heart of these groundbreaking sunglasses is variable neutral density (ND) filter technology, a tool cherished by photographers for its ability to ...

I’d call it a mid-tint lens. I wouldn’t wear it on a late ski season, bluebird skin into the alpine high country. But for almost all else, it would be fine. The Music Shield sunglasses are ...

Variable neutral density (ND) filters are handy tools for photographers, in that their opacity can be adjusted simply by rotating them. So, why not use them for adjustable-tint sunglasses?

Now, everyone’s wearing tinted lenses, all the time, all in the name of good health. The people who swear by (and sell) these shades claim they’ll boost your wellbeing across the board ...

SEE ALSO: CES 2025 highlights: What we've seen so far Chamelo brought a number of its latest products to CES, but all of the company's smart glasses focus on one main feature: Changing the tint on ...

The top portion of the lens has a darker tint, while the bottom has a lighter tint or no tint at all. The sunglasses are named for this gradient transition in tones. While regular sunglasses have ...