Medium Format | f/2.5 to f/32
20mm (Full-Frame Equivalent)
Ultrawide-Angle Prime
Leaf Shutter with 1/4000 sec Sync Speed
Linear Stepping Autofocus Motor
4 Aspherical Elements, 3 ELD Elements
72mm Filter Thread
Minimum Focus Distance: 9.8″

L-Mount Lens/Full-Frame Format
Aperture Range: f/2 to f/22
Three Extra-Low Dispersion Elements
Two Aspherical Elements
Rectilinear Design, Low Distortion
Frog Eye Dust & Water-Repellent Coating
Manual Focus Design
Manual Aperture Ring Can Be De-Clicked
5-Blade Diaphragm