YONGNUO YN17mm F1.7M M4/3 Mount Lens for Mirrorless Cameras, YN17mm F1.7M

Features
1. Small Yet Powerful: Lightweight body combined with F1.7 large aperture, you can easily achieve a soft and beautiful blur effect.
2. Structure: This 17MM F1.7 lens mount is equipped with a dust-proof and water-proof rubber ring, which can effectively resist the entry of dust and water droplets. Metal bayonet, gold-plated contacts, supports EXIF information transmission, equipped with 52mm lotus-shaped lens hood
3. Focus Ring: Focus ring supports full-time manual focus, After completing auto-focus, you can directly manually adjust the focus position without switching the focus mode to achieve the focus effect you want. ( Note: The full-time manual focus function can only be used normally after enabling the corresponding settings on the camera. For detailed operations, please refer to the camera manual
4. Function: Equipped with 2 aspherical lenses to effectively compensate for various aberrations, equipped with 2 low dispersion lenses, which can better suppress the dispersion problem caused by wide angles

Specifications
1. Model: YN17mm F1.7M
2. Bayonet: M4/3 Mount
3. Format: M4/3 Frame
4. Viewing angle range: Diagonal: 41.4 degrees; Vertical: 53.9 degrees; Horizontal: 65.1 degrees
5. Optical Structure: 10 elements in 9 groups
6. Aperture blade: 7pcs
7. Lens focal length: 17mm (35mm equivalent focal length: 34mm)
8. Maximum Aperture: f/1.7
9. Minimum Aperture: f/22
10. Filter Size: 52mm
11. Minimum Focus Distance: 0.18m
12. Magnification: 0.15x
13. Drive System: Stepper motor
14. Dimensions (DxL): 65.8 x 77.8mm
15. Weight: 180g