The F-number of a photographic lens is a measure of its light-gathering ability, and is expressed as its aperture diameter ...

The AstrHori 6.5mm f/2 fisheye is a fully manual lens for APS-C Sony E, Fuji X, Nikon Z, Canon RF and Micro Four Thirds ...

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

What is a mirror lens exactly? And have they got a new lease of life when used on mirrorless cameras? I've been trying them ...

Third-party optics brand 7Artisans has unveiled its newest optic compatible with the Fujifilm X-Mount: the 7Artisans AF 35mm ...

This lightweight lens is the ideal focal length for everyday shooting and will create sharper images with better background blur than your kit lens can produce. To take your photography to the ...

Tim Coleman and the AP team guide you through the best lenses for astrophotography, with options for full-frame, APS-C and Micro Four Thirds. The post Best lenses for astrophotography appeared first ...

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.

Progressives lenses approach eyesight in this same way, affording the wearer the ability to adjust between different focal ...