EF 50 mm f1.0 L USM
Canon offers the lightest EF lens of all at a mere 4.6 oz. (130g). It is a compact and high-performance, standard lens. Its Gaussian optics provides sharp delineation from near to far focusing distances. The color balance is excellent for a standard lens.
Canon EF 50 mm f1.0 L USM, 50 mm
Canon EF 50 mm f1.0 L USM. Lens viewing angle, diagonal: 46°, Focal length range: 50 mm, Thread diameter: 0.268" (6.8 mm). Product color: Black. Filter size: 2.05" (5.2 cm), Weight: 4.59 oz (130 g). Magnification: 0.15x