Available NOW ! YONGNUO YN50mm F1.8S DA DSM 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 *F1.8 Bright and large Aperture *Low dispersion glass lens *Internal focus design, small and lightweight *7 groups of 8 pieces of optical structure design, nanometer multi-layer coating *Gold-plated contact, metal bayonet *Fast autofocus (AF) and manual focus (MF) are supported *Seven circular aperture blades
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