Exquisite workmanship, high accuracy, good optical quality. It is worth having and enjoyable. The coke imaging of the lens is softer, suitable for portraits and some larger flowers and plants. 50mm F1.4 full -frame lens, suitable for portrait, theme, and landscape photography. The lens structure is 7 sets of 7 pieces, with excellent workmanship and sharp imaging. Small design, easy to carry Format: full -frame Focus: 50mm Filter size: 55mm : F1.4-22 Recent focus distance: 0.45m Optical structure: 7 pieces and 6 groups Applicable card port: For Material: ABS+metal Colour: Black Package Contents: 1 x Lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.