Focus: ManualIris: ManualFocal Length (mm): 16Iris Range: F1.4 ~ F16Back Focal Distance (in air) (mm): 15.15Exit Pupil Position (From Image Plane) (mm): -30.9Filter Thread (mm): M25.5 x 0.5Mass (g): 45Focusing Range (From Front Of The Lens) (m): ‡ ~ 0.1Angle Of View: 30‹45' x 23‹18'Object Dimensions at M.O.D.: 63 x 47