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″)

Focal length: 51,6 mm
Aperture range: f/2 – f/22
Lens elements | groups: 8 / 6

Focal length: 50 mm
Aperture range: f/1.4 – f/16
Lens elements | groups: 16 / 13
Flange focal distance: ZE: 44 mm (1.73″) | ZF.2: 46 mm (1.83″)
Entrance pupil position (front of image plane): 54 mm (2.13″)

Focal length: 85 mm
Aperture range: f/1.4 – f/16
Lens elements | groups: 6 / 5
Flange focal distance: ZE- 44 mm (1.73″) | ZF.2: 46 mm (1.83″)
Entrance pupil position (front of image plane): 38 mm (1.49″)