**Product Specifications:**
**Brand:** YONGNUO
**Model:** 85F1.8SDFDSM
**Mount:** E-mount
**Sensor Compatibility:** Full Frame
**Weight:** Approximately 385g
**Aperture:** f/1.8
**Optical Construction:** 8 groups, 9 elements
**Special Lens Element:** 1 low dispersion glass element
**Aperture Blades:** 7 circular blades
**Focus Motor:** Digital Stepping Motor (DSM)
**Additional Features:** Fn function button, USB firmware upgrade, dust and water-resistant rubber gasket on mount
**Dimensions:** 67 x 87mm
**Filter Thread:** 67mm
**Focus Mode Switch:** AF/MF
**AF/MF Switch:** AFIIMF
**Maximum Magnification:** 0.13x
**Minimum Focus Distance:** Approximately 0.8m
**Firmware Upgrade:** USB Type-C interface
**Lens Coating:** Multi-coated
**Accessories:** Lens hood (LH-80T), front and rear lens caps, user manual/product warranty card
**Note:** Specifications are based on the information provided and are subject to change without prior notice.
