Meike 55mm F1.8 Pro Series Auto Focus STM Full Frame Standard High Resolution 8K Prime Portrait Lens Compatible with Sony E Mount Cameras A7 A7R A7IV A7R IV A7III A7RII A7RIII A7SIII A9 A7C A7CII

Compatible with Sony E Mount Cameras A7 A7R A7IV A7R IV A7II A7III A7RII A7RIII A7S A7SII A7SIII A9 A9II A7C A7CII. Support AF, Electronic Aperture Adjustment, Eye AF, Animal AF and EXIF information transmission; Features Type-C firmware upgrade interface, enables you to upgrade the lens online.. Adoption of STM stepping motor and NanoDrive Auxiliary System, achieve high-speed focusing and ultra-low noise for easy control in both still photography and motion capture. Manually adjust aperture size, instantly switch depth of field for convenient video shooting.. The 55mm focal length closely matches the natural field of view of the human eye while maintaining natural perspective. Suitable for portraits, landscapes and still life photography. (APS-C equivalent: 82.5mm). Supports high-resolution imaging for 8K sensors, faithfully reproducing every detail. Exceptional resolving power meets higher image quality demands. Minimum focusing distance of 0.55m, Maximum magnification of 0.12X, Wide aperture of F1.8 with 9 diaphragm blades, designed to produce super smooth round blur effect (bokeh)