Sigma AF 70-200mm f/2.8 EX HSM Sigma SA

Weight: 1270 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
Additional Information: TS-21 tripod mount included
Type: Lens
Functions: Focusing motor for Nikon F, ultrasonic motor, macro mode, internal focusing
Length: 184 mm
Diameter: 86.2 mm
Max. focal length: 200 mm
Min. focal length: 70 mm
Focal length: Variable
Lens type: Telephoto lens
Zoom ratio: 2.9x
Max viewing angle: 34.3 deg.min
Minimum focus distance: 1.8 m
Auto focus: There is
Bayonet: Sigma SA
Filter thread diameter: 77 mm
Aperture F at max. focal length: 2.8
Aperture F at min. focal length: 2.8
Minimum aperture F: 32
Number of aperture blades: 9
Minimum viewing angle: 12.3 deg.min
Number of element groups: 15
Number of low dispersion elements: 4
Number of elements: 18