Bright f/1.4 maximum aperture suits working in low-light conditions and also affords greater control over depth of field
This lens adopts Viltrox STM stepping motor with a gear-type unit which provides a quick, quiet, and precise Autofocus performance along with full-time manual focus override. Support Eye Autofoucus,easily detect and track the subject
One extra-low dispersion elements reduce color fringing and chromatic aberrations in order to achieve a high degree of clarity and color accuracy. One high refractive index elements help to control spherical aberrations and reduce distortion in order to realize high sharpness and accurate rendering
11 groups 10 piece including 2 ED lenses and 2 high refraction index lens effectively suppress color difference, HD Nano multilayer coating on an unspecified number of elements to help improve water resistance and minimize chromatic aberration
Durable and all-metal construction with weight of 0.57 lb, compact and pricise structure make the lens great hand feeling; Integrated micro-USB port can be used to update the lens's firmware