Additional information on the new Yongnuo YN 85mm f/1.8R DF DSM AF mirrorless lens for Canon RF mount:

• For full-frame mirrorless cameras with Canon RF mount
• Aperture ratio: 1: 1.8-1: 16
• Focal length: 85mm
• Minimum focusing distance: 80 centimeters
• Maximum magnification ratio 1: 7.7
• Optical design: 9 elements in 8 groups, with 2 special optical elements. The circuit is new, not at all similar to the one used in the models for the Yongnuo 85mm 1: 1.8N and Yongnuo 85mm 1: 1.8 lenses. The same design is used by the Yn Lens YN85mm F1.8S DF DSM.
• Autofocusing with DSM stepping motor (Digital Stepping Motor)
• Aperture: 7 rounded blades
• AF / MF focus mode switch, support FTM
• Control ring , smooth or with clicks (optional), combined with focus ring (optional: focus / control / click)
• Filter diameter: 58 mm
• Programmable control button
• Hood included
• USB TYPE-C port for firmware upgrades and lens adjustments
• Protective sealing ring near the bayonet
• Weight: 380 grams
• Price: about $300
• This is the third third-party autofocus lens for Canon RF mount (the first two are Samyang 14/2.8 and Samyang 85 /1.4)

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