Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on amateur telescopes.

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...

"Our computational techniques suggested we could design multi-level diffractive flat lenses with large apertures that could ...

What's more, production may not be far off. "Our computational techniques suggested we could design multi-level diffractive flat lenses with large apertures that could focus light across the ...

Sony's first GM zoom lens with a constant f/2 maximum aperture and a useful zoom range for wedding and portrait photographers ...