Fixed focal length of 50mm
2 high-refraction lens elements, Gaussian optics
7 lens elements arranged in 6 groups
Filter thread specification 58mm
Diagonal angle of view 46 degrees
This standard prime lens features both excellent build quality and portability. The 50mm focal length is effective in a huge range of situations and the maximum f/1.4 aperture enables you to work in almost any lighting condition. To produce the best image quality, the two high-refraction lens elements and included Gaussian optics have been designed to eliminate astigmatism and suppress astigmatic difference. Finally, the inclusion of the UltraSonic Motor (USM) allows the autofocus to operate quickly and quietly. This lens continues to be a favorite among many photographers of all kinds.
Standard Focal LengthWith a standard focal length of 50mm, this lens is effective for many different photographic scenarios and can easily become your favorite lens. While optimized for full-frame cameras, this lens also works well with APS-C cameras and produces an 80mm equivalent focal length that makes it an effective portrait lens.
Fast ApertureThe maximum f/1.4 aperture allows you to operate in even the most challenging of low light situations. It does this while also providing you with crisp images that enjoy little flare and an amazingly shallow depth of field.
Fast and Quiet AutofocusIncluded in this lens is the UltraSonic Motor (USM). This allows autofocus to quickly, smoothly, and quietly zoom in on your subject. Additionally, this lens includes a full-time manual focus override that allows you to easily take over and focus with even more precision.
High Quality ConstructionThis lens boasts an excellent build quality that ensures that it will continue to serve you for years to come. While still being small and lightweight, it incorporates high-quality lens elements and new Gaussian optics that eliminate astigmatism and suppress astigmatic difference.
Focal Length & Maximum Aperture
7 elements in 6 groups
Diagonal Angle of View
Overall linear extension system with USM
Closest Focusing Distance
0.45m / 1.5 ft.
Max. Diameter x Length, Weight
2.9" x 2.0", 10.2 oz. / 73.8 x 50.5mm, 290g