1. 3.3-22 aperture range and 1:3.3-4.5 aperture ratio
2. 62-34 degrees 20' picture angle
3. 2-ring operation for zoom and focusing
4. Macro range 35-70mm

8 elements in 7 groups
Closest Marked Focusing Distance [m] 0.35
Filter Attachment Size [mm] 52
Dimensions: Dia x Length (extension from lens mount), [mm] 63 x 69
Weight [g] 255