Ever since I saw the Viltrox AF 135mm F1.8 LAB lens for Sony full-frame cameras I've been counting down the days until ...

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

Vivo has just unveiled the specs for its upcoming X200 Ultra smartphone, a device that was previously claimed to be able to ...

The GFX100RF occupies a new space in Fujifilm's lineup and comes with a new design. It's essentially the long-rumored 'medium ...

Mark shot this image using the Sigma 150-600mm F5-6.3 | Contemporary lens, utilising a low f-stop number to create a shallow depth of field. | Credit: Mark Deans "For wildlife photography, a wide ...

Lens The lens and aperture are key factors in determining depth of field. Lenses are known by their focal lengths - 14mm, 50mm, 200mm. Their role is to bend the rays of light that enter through ...

Fujifilm just announced its latest medium format camera, the GFX100RF. This one differs from the company’s other GFX models ...

The new 32x zoom lenses impress with Full HD image quality across the entire zoom range with maximum focal lengths of up to f = 400 mm (FD32x12.5SR4A) and f = 500mm (FH32x15.6SR4A). To respond to ...

1. A lens with the spectrum range expanded to NIR and covering a focal length range most commonly used at telephoto end: Extended spectrum coverage to NIR range coupled with the most commonly used ...