23mm f/1.4 .4 Lens for Canons - Mount Camera Mark , with Lens Filter Combo

Features: ??11 elements in 10 groups, including 2 lenses and 2 high refraction index lenses,which can effectively suppress color difference.The depth of field under the large aperture of .4 is very small, and a large blur r4g,'Appears from near the focal point ?? stepping motor is adopted, which makes fast, accurate and quiet autofocus come true ??The bottom of the lens is equipped with a micro interface, which is convenient for future firmware upgrades and makes its performance stronger ??Turn the aperture knob at the bottom of the lens to and adjust the aperture automatically rotate the aperture ring at the bottom of the lens directly by hand and adjust the aperture manually. ??Lightweight and compact lens design and versatility can meet the different needs of photographers and video users