Standard lens featuring superb quality and portability Standard focal length 50mm lens is effective in a multitude of shooting situations and ideal for day--to-day shooting Diaphragm: Blades 8; Filter Thread: Font 58mm An f/1.4 maximum aperture provides clear imaging in low light situations and shallow depth of field Ultrasonic autofocus motor (USM) operation is fast, smooth and virtually silent Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference Minimum focusing distance: 45.2 cm (17.8 inch) This large aperture standard prime lens has superior peripheral brightness even at the maximum aperture Crisp images with little flare are obtained even at the maximum aperture Lens construction: 8 elements in 6 groups, Filter size: 77mm Optimized for Digital - super multi-layer coating minimizes flare and ghosting - a common problem of digital cameras The optimum optical design and molded glass aspherical lens elements provide excellent correction for all types of aberrations, including coma aberration, resulting in superior optical performance.

Focal length: 50mm Aperture: f/1.4 Focus distance: 45.2 cm (17.8 inch) 58mm filter