- *20mm focal length, F2.8 aperture
- *8 groups of 10 elements optical construction, including 2 ED lenses, 1 lenses with high refractive index and 2 aspherical lenses
- *HD Nano multilayer coating with water-resistant and antifouling coating
- *Electronic aperture,internal focus,constant lens length
- *Noiseless STM focus motor
- *Precision hardened aluminum alloy bayonet
- *Convenient and lightweight
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