Add Yahoo as a preferred source to see more of our stories on Google. But the concept of “normal vision,” let alone the 50-mm lens’s ability to reproduce it, is hardly a given. The idea that a 50-mm ...

Lenses are used to bend and focus light. Normal lenses rely on their curved shape to achieve this effect, but physicists have made a flat lens of only three atoms thick which relies on quantum effects ...

If you can't read the street sign, just wink your right eye and zoom in. A pioneering pair of contact lenses may soon be a reality for a research team from the Swiss Federal Institute of Technology.

We are used to conventions in filmmaking. But is adhering to them holding you back? Neil Oseman gives reason to think much more about the lenses you are using. Are you choosing the right lens for ...

Interchangeable lens cameras, or cameras that let you swap out lenses, can unlock a lot of opportunities and new creative control for your photography. That's because different focal lengths (offering ...

I'm thinking about upgrading my D80 to a D7000, and since I'd probably sell the old body as a package with its 18-135 kit lens, I would need to get a new normal-range zoom to cover that range. I need, ...

Just get any AF-D lens; the D60 can't auto focus with the screw driven lenses (AF or AF-D), but can meter with them and all the camera modes are available. The Nifty Fifty (50mm f/1.8 AF-D) comes to ...