Designed for all types of high-end photography needs as well as a host of professional video applications, the new Sony FE 50 ...

South Korean lens maker Samyang has partnered with German optics specialist Schneider-Kreuznach to launch its first ...

The technical definition of a telephoto lens is one with a focal length greater (or longer) than 50mm (on the 35mm/full frame ...

We have rounded up the best zoom lenses with options to suit a range of cameras and photography styles, just in time to make the most of April's new moon. Zoom lenses help you to get closer to ...

Sony's latest lens is the world’s first telephoto zoom lens with a maximum focal length of 150mm and constant f/2 aperture.

I like so much about the Nothing Phone 3a and 3a Pro, yet a familiar flaw keeps me from telling you to buy one right away.

and that this could be overcome by making lenses with longer focal length, resulting in monsters like Hevelius's 45-metre-long telescope in Danzig. Two key inventions enabled astronomers to ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

If you're looking for the best telephoto lenses for your camera ... so I've bypassed really exotic glassware that costs a fortune. The long focal length of a telephoto lets you fill the frame with ...

Although astrophotographers specializing in the Moon usually photograph it through a powerful telescope, a telephoto lens of almost any focal length is good enough to get a good Moon shot. Making the ...

Professor Lars Schmitz joins WIRED to guide us through a giant tree of life mapping the evolution of eyes in the animal ...