Lenses

Aperture Range: f/1.4 to f/16
One Aspherical Element
Five Low Dispersion Elements
Zeiss T* Anti-Reflective Coating
Manual Focus Design
Manual Aperture Ring Can Be De-Clicked
Anodized Metal Barrel, Rubber Focus Ring

EF-Mount Lens/Full-Frame Format
Aperture Range: f/1.4 to f/16
Four Low Dispersion Elements
One Aspherical Element
Distagon Optical Design
ZEISS T* Anti-Reflective Coating
Floating Elements System
Manual Focus Design, Rubber Focus Ring
Weather-Sealed Construction

E-Mount Lens/APS-C Format
18mm (35mm Equivalent)
Aperture Range: f/2.8 to f/22
Two Aspherical Elements
Three Low Dispersion Elements
Distagon Optical Design
ZEISS T* Anti-Reflective Coating
Floating Elements System
DC Autofocus Motor
9-Blade Diaphragm