Yongnuo will soon announce an updated version of 42.5mm f/1.7 II lens for Micro Four Thirds system cameras. The price of the lens will be aproximately $100. Yongnuo lenses are sold at Adorama, B&H, and Amazon.
- Aperture ratio: 1: 1.7-1: 16
- Focal length: 42.5 mm (for Micro 4/3 cameras is 85 mm)
- Minimum focusing distance: 30 cm
- Maximum magnification ratio 1:6.7
- Optical design: 9 elements in 8 groups with 2 Yongnuo ED ED elements
- Autofocusing with DSM (Digital Stepping Motor)
- Aperture: 7 rounded blades
- AF / MF focus mode switch
- Filter diameter: 52 mm
- Weight: 135 grams
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