Viltrox 23mm f1.4 E mount autofocus lens is constructed of 11 elements in 10 groups, including one extra-low dispersion (ED) element and one high-refraction element
The autofocus lens features Viltrox’s ‘noiseless’ stepping motor (STM focus motor) for driving the autofocus unit to performs steady, fast and smooth auto focus
The lens is a well made metal body ,small and compact, weighs 260g (0.57LB) and uses a 52mm front filter thread
The lens has a build in USB port for firmware to reach a compatibility for the newest cameras model and supports EXIF information transmission
Track the Subject, support EYE-AF: Accurate eye detection, focus easily on human eyes and track moving subjects in real time