Specifications:

Brand Canon
Focal Length 50mm
Aperture Maximum: f/1.2
Minimum: f/16
Camera Mount Type Canon RF
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 46°
Minimum Focus Distance 1.31′ / 40 cm
Magnification 0.19x
Maximum Reproduction Ratio 1:5.25
Optical Design 15 Elements in 9 Groups
Diaphragm Blades 10, Rounded
Image Stabilization None
Autofocus Yes
Filter Thread Front: 77 mm
Dimensions (DxL) Approx. 3.54 x 4.25″ / 89.8 x 108 mm
Weight 2.09 lb / 950 g

Features:

Normal-length prime is designed for full-frame Canon RF-mount mirrorless digital cameras.

Exceptionally bright f/1.2 maximum aperture affords extensive control over depth of field for selective focus applications and also benefits working in low-light situations.

One UD (Ultra-Low Dispersion) element is featured, and helps to minimize chromatic aberrations and color fringing in order to provide greater clarity and color accuracy.

An aspherical element is used to correct spherical aberrations and distortion for improved sharpness and accurate rendering.

Ring-type Ultrasonic Motor (USM), along with optimized focusing algorithms and a high-speed CPU, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.

Configurable Control Ring can be used to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation.

As a member of the esteemed L-series, this lens has a weather-resistant design that protects against dust and moisture to enable its use in inclement conditions.

Rounded 10-blade diaphragm contributes to a pleasing bokeh quality.