It was the curved shape of the lens that led to its name being borrowed, in the late 17th century, from the Latin name of the lentil plant, lens culinaris. In French, another word for lens is objectif ...

When you use DPReview links to buy products, the site may earn a commission. TTArtisan has announced the AF 40mm F2, a 'normal' focal-length prime for full-frame Sony E and Nikon Z mount cameras. It's ...

A lens that's also called standard because it has a focal length roughly the same as the diagonal of the film format and is around the same magnification as the naked eye. This is technically known as ...