Manual Aperture Setting: Turn the aperture adjustment ring to manually set the aperture from F1.4 to F16. The aperture will switch to be controlled by camera when turned to stop A. Brand Meike Model 85mm F1.4 AF Focal Length 85mm Maximum Aperture f/1.4 Type Full Frame, High Quality, Portrait, Large Aperture Focus Type Auto Mount Sony E-mount MPN Does not apply Country/Region of Manufacture China Color Black Compatible Filter Size 77 mm Manufacturer Warranty 1 Year Compatible Brand For Sony Exterior Material Metal Functions: Equipped with STM stepping motor, the lens will bring you experience of silent and smooth focusing. Support AF(Auto Focus), electronic aperture adjustment and EXIF information transmission 85mm f/1.4 is a high-resolution portrait shooting lens which can achieve high-resolution imaging in focus and soft background blurring out of focus, providing clear image for daily shooting. The lens is easy to carry and its images are sharp and clear at any aperture. The 85mm f/1.4 uses the newest optical structure, making it able to achieve a large aperture of f/1.4. Multi-layer coating technology is used on both sides of the lens to restore more realistic colors. The lens is not easy to attach dust or stains, and can be easily wiped clean. Package Included: 1* 85mm F1.4 Lens 1* Lens hood 1* Front lens cap 1* Rear lens cap 1* Manual