Focus: ManualIris: ManualFocal Length (mm): 35Iris Range: F1.6 ~ F22Back Focal Distance (in air) (mm): 15.03Exit Pupil Position (From Image Plane) (mm): -26.6Filter Thread (mm): M25.5 x 0.5Mass (g): 45Focusing Range (From Front Of The Lens) (m): ‡ ~ 0.25Angle Of View: 14‹20' x 10‹46'Object Dimensions at M.O.D.: 59 x 44