The Samyang AF 50mm f/1.4 FE II is a fast and compact normal prime lens for Sony E-mount cameras. It present several features that punch well above its class while still maintaining a small and lightweight profile. The bright f/1.4 maximum aperture pairs with a nine-blade diaphragm to benefit selective focus and shallow depth of field imaging with smooth bokeh, making it an ideal lens for portraiture. A Linear STM autofocus motor is used to produce quick, smooth, and quiet performance with full-time manual focus override, and a non-rotating filter, along with features like Internal AF and reduced focus breathing make it an optimal lens for video. A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions. The integrated autofocus motor works in conjunction with Sony cameras' focusing systems for quick, accurate, and precise AF control. Manual focus override is also available for refining your focus position. Nine-blade diaphragm contributes to a smooth and pleasing bokeh quality. The optical design incorporates three High Refractive, one Extra Low Dispersion, and two Aspherical elements.