Sigma AF 24-60mm f/2.8 EX DG Nikon F

Weight: 550 g
Brand: Sigma
Description: Mount: Mamiya 645, lens type: standard, focal length: variable, min. focal length: 55 mm, max. focal length: 110 mm, aperture F at min. focal length: 4.50, aperture F at max. focal length
Type: Lens
Functions: Macro mode, internal focusing
Length: 87.2 mm
Diameter: 836 mm
Max. focal length: 60 mm
Min. focal length: 24 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 2.5x
Max viewing angle: 84.15 deg.min
Minimum focus distance: 0.38 m
Auto focus: There is
Bayonet: Nikon F
Filter thread diameter: 77 mm
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 22
Number of aperture blades: 9
Minimum viewing angle: 39.6 deg.min
Number of aspherical elements: 4
Number of element groups: 15
Number of low dispersion elements: 2
Number of elements: 16