Focus: ManualIris: ManualFocal Length (mm): 16Iris Range: F1.4 ~F22Back Focal Distance (in air) (mm): 17.99Exit Pupil Position (From Image Plane) (mm): -172Filter Thread (mm): M49 x 0.75Mass (g): 280 Focusing Range (From Front Of The Lens) (m): ‡ ~ 0.1Angle Of View: 43‹36' x 33‹24'Object Dimensions at M.O.D.: 100 x 75