Functions:Standard 85mm full frame lens for portrait, subject, architecture and landscape photographyWide aperture of f1.8 with 9 diaphragm blades, designed to produce super smooth round blur effect (bokeh)Support AF, electronic aperture adjustment and EXIF information transmissionEquipped with STM stepping motor, the lens will bring you experience of silent and smooth focusing.Features micro USB firmware upgrade interface, enables you to upgrade the lens onlineInstruction:Meike 85mm f1.8 is a medium-telephoto lens designed for medium and long range, which can provide clear image for daily shooting.The lens is easy to carry and its images are sharp and clear at any aperture.The brand new 85mm f1.8 uses the newest optical structure, making it able to achieve a large aperture of f1.8 while maintaining miniaturization and lightweight.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.Specification:Filter size: 67mmFormat: Full FrameFocal Length: 85mmAperture range: F1.8-22Lens diameter: 79.5mmAperture blades: 9 bladesLens structure: 6 groups 9 elementsMinimum Focusing Distance: 0.85mAngle of View: Horizontal: 16 Vertical: 24 Diagonal: 28.5Weight: 386g/0.85lb (only body)Package Included:1* 85mm f1.8 Lens 1* Lens hood 1* Front lens cap 1* Rear lens cap 1* Manual1* MCUV Lens Filter1* Lens Bag1* Cleaning Cloth