ZEISS Batis 40mm f/2 CF Lens for Sony E
E-Mount Lens/Full-Frame Format
Aperture Range: f/2 to f/22
Distagon Optical Design
Three Aspherical Elements
Four Low Dispersion Glass Elements
Floating Elements System
ZEISS T* Anti-Reflective Coating
OLED Display for Focus Distance and DoF
Linear Autofocus Motor
Dust and Moisture-Resistant Construction