Sigma AF 8-16mm f/4.5-5.6 DC HSM Sigma SA

Weight: 555 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: Focusing motor for Nikon F, ultrasonic motor
Length: 105.7 mm
Diameter: 75 mm
Max. focal length: 16 mm
Min. focal length: 8 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 2x
Max viewing angle: 114.5 deg.min
Minimum focus distance: 0.24 m
Auto focus: There is
Bayonet: Sigma SA
Aperture F at max. focal length: 5.6
Aperture F at min. focal length: 4.5
Minimum aperture F: 22
Number of aperture blades: 7
Minimum viewing angle: 75.7 deg.min
Number of aspherical elements: 3
Number of element groups: 11
Number of low dispersion elements: 4
Number of elements: 15