The autofocus lens features Viltrox's ‘noiseless' stepping motor (STM focus motor) for driving the autofocus unit to perform steady, fast and smooth autofocus
The lens features an aperture range of F1.4 through F16, uses a nine-blade aperture diaphragm
Using an ‘HD Nano' multilayer coating on an unspecified number of elements to help improve water resistance and minimize chromatic aberration
Has a well-made metal body, small and compact, weight 260 g (0.57 LB) and uses a 52mm front filter thread
Has a built-in USB port for the firmware to reach compatibility for the newest camera model and supports EXIF information transmission