- 85mm focal length,F 1.4large aperture
- Optical construction of15 elements in 1l groups, including 3 ED lensesand 9 lenses with high refractive index and 1 Ultra Precision Aspherical Lens
- HD Nano multilayer coating with water-resistant and antifouling coating
- Electronic aperture,internal focus,constant lens length
- NoiselessVCMfocus motor
- Precision metal structure
- Dust-proof and moisture-proof