1. 1.8-22 aperture range and 1:1.8 aperture ratio
2. 46 degrees Picture angle
3. Automatic diaphragm type

6 elements in 5 groups
Closest Marked Focusing Distance [m] 0.6
Filter Attachment Size [mm] 52
Dimensions: Dia x Length (extension from lens mount), [mm] 63.5 x 27.5
Weight [g] 145