Focal length: 28 mm
Aperture range: f/2.0 – f/22
Format compatibility: Full Frame
Lens elements | groups: 10 / 8
Flange focal distance: ZE: 44 mm (1.73″) | ZF.2: 46 mm (1.83″)
Entrance pupil position (front of image plane): 89 mm (3.48″)