A wide-aperture 50mm lens is one of the most versatile a photographer can have in their bag, suitable for everything from low-light events coverage to portraits. Samyang, well known for producing sharp manual focus lenses, has branched into autofocus lenses in recent years, and this great video review takes a look at the new AF 50mm f/1.4 EF II lens and the kind of image quality and performance you can expect from it in practice.