Variable neutral density (ND) filters are handy tools for photographers, in that their opacity can be adjusted simply by ...

While previous generations of Transitions lenses could take several minutes to transition between clear and tinted, Gen S ...

This function digitally calculates the transmittance through tinted lenses such as sunglasses, which has been estimated only on feel until now. It enables to recommend sunglasses with quantitative ...

He claims he has been able to transform the lives of patients with a range of visual problems by using tinted lenses. But the General Optical Council has now "erased" him from its register of ...

While previous generations of Transitions lenses could take several minutes to transition between clear and tinted, Gen S lenses take seconds. In tests, they were able to reach category three ...

Chamelo Lenses change tint in less than 0.1 seconds, thanks to a “flexible, liquid crystal film” that is controlled electronically by tapping or sliding a finger across the temples.

Pink or red-tinted lenses are ideal for depth perception, according to Hunting and Fishing. This color is also a popular ...