AstrHori, makers of such optical oddities as the 18mm f/8 2x Periscope Probe Macro lens, has announced a new circular fisheye ...

Focal length is used to determine your lens's angle ... as it's particularly suitable for portraits and close-up photography. The best macro lenses are usually short telephoto focal lengths ...

We spent a full year testing nearly 40 X-mount lenses to figure out which ones make the most sense for Fujifilm shooters.

A macro lens can give you impressive close-ups. Photo: Erin Lodi A 70mm focal length is also pleasing for portraiture with a full-frame DSLR, as is the 105mm equivalent on a crop-sensor camera.

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

John Riley gives a solid look at the compact Panasonic Lumix S 28-200mm f/4-7.1 OIS Macro Lens. Find out what he thinks about this full frame lens. 21 May 2024 4:20PM by John Riley | Panasonic ...

At NAB 2025 in Las Vegas, ELYSAS was showing its new Muse LF. These new lenses are available in the following focal lengths: ...