YONGNUO YN17mm F1.7 M4/3 MFT Macro Lens

FEATURES：

Full-Frame Lens:
YONGNUO YN17mm F1.7 Macro Lens is for M4/3 mount. It is a full-frame lens, and will be the company's longest focal length lens to date and will offer users the opportunity to focus closely on their subjects. 

Alternative Macro Experience:
YONGNUO YN17mm F1.7 Macro Lens provides an alternative macro experience to its existing offerings.

Autofocus:
YONGNUO YN17mm F1.7 Macro Lens is equipped with STM CNC stepper motor, support autofocus. The focus ring also supports full-time manual focus, with an autofocus/manual focus switch.

Full-Time Manual Focus:
Full-time manual focus means that after completing the autofocus, you can directly adjust the focus position manually without switching the focus mode to achieve the desired focusing effect, which is more convenient and fast.

10 Elements In 9 Groups:
The lens features a 10-element construction in 9 groups, including 2 aspherical elements, 2 low-dispersion elements, and 7 circular diaphragm blades, metal mounts, and gold-plated contacts.

Lens Parameters
Model: 17mm F1.7
Focal length: 17mm
Focusing method: Auto focus, Manual focusing
Aperture elements: 13
Field of view: Diagonal: 41.4°, Vertical: 53.9°, Horizontal: 65.1°
Applicable mounts: M4/3
Net weight: 200g
Format: M43 format
Aperture blades: 7 blades
Minimum focus distance: 0.18m
Aperture range: F1.7-F22
Lens composition: 10 elements in 9 groups
Size: Ф65.8mm*L77.8mm
Maximum magnification: 0.15x
Drive System Stepper: Motor