Lens Displacement: (CCD Size: Horizontal / Veritical) 24 x 36: 24 / 20 30 x 30: 22 / 22 44 x 44: 17 / 17 60 x 60: 4 / 4Image Circle Diameter: Focal Length: 80mm Relative Aperture: 4.0 Image Circle Diameter at 24 x 36 and 30 x 30: 80mm Image Circle Diameter at 44 x 44 and 60 x 60: 90mm Note: This lens does not have a shutter.