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 ...

Roland Denning on what exactly is meant when we say a lens is 'standard' and why that meaning may be rather more fluid than many would like to admit. This might seem a simple question, but what is a ...

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 ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact [email protected]. Back to Healio Fitting with a conventional contact lens: ...