If you're asking "What is an anamorphic lens?" then you either have an interest in video and filmmaking, or you've been watching or reading about JJ Abrams movies.
Anamorphic lenses are used throughout the filmmaking world – and are a favorite of Hollywood productions – to capture wider fields of view, or rather wider aspect ratios. Conventional, spherical lenses produce a smaller field of view, given their more square dimensions.
