YN50mm F1.8S DA DSM is an automatic focus lens designed for the E mount APS-C frame digital camera of S, which has excellent performance in blurs background to highlight the main body, imaging sharpness, volume and weight.

Carry the digital stepping motor

Compared with the traditional DC motor, digital stepping motor (DSM) has fast start and stop response, high focusing accuracy and quieter focusing action, which is suitable for photo shooting and short film recording.

Electronic focus rings

Adopts electronic focus rings, supplemented by appropriate damping, which can provide smooth manual focus experience of high precision.

USB Firmware Upgrade

Equipped with USB interface, you can download the latest firmware from Yongnuo official website to upgrade the lens.

F1.8 Bright and large Aperture

Flexible use of F1.8 large aperture, easy to obtain a soft and beautiful blur effect. In low light environment you can also use a low sensitivity and high shutter for shooting.

Low dispersion glass lens

Adopts one low dispersion glass lens,which not only better suppress the dispersion problem, but also further improve the secondary spectrum.

Internal focus design, small and lightweight

Focusing lens set adopts internal focusing design,the weight is only about 146 grams, small and light, easy to carry.

50mm F1.8S DF DSM - new lens

• 11 elements in 8 groups
  • four high-refractive elements, one low-dispersion element and one aspherical element
• Min focusing distance - 45cm
• AF digital STM motor
• Nine-blade aperture diaphragm
• 58mm filters
• Customizable Fn buttons
• built-in USB-C port for updating the lens firmware
• $310