Sigma AF 18-35mm f/1.8 DC HSM Art Minolta A

Weight: 810 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: 121 mm
Diameter: 78 mm
Max. focal length: 35 mm
Min. focal length: 18 mm
Focal length: Variable
Lens type: Wide angle
Zoom ratio: 1.9x
Max viewing angle: 76.5 deg.min
Minimum focus distance: 0.28 m
Auto focus: There is
For non-full frame cameras only: Yes
Bayonet: Minolta A
Filter thread diameter: 72 mm
Aperture F at max. focal length: 1.8
Aperture F at min. focal length: 1.8
Minimum aperture F: 16
Number of aperture blades: 9
Minimum viewing angle: 44.2 deg.min
Number of aspherical elements: 4
Number of element groups: 12
Number of low dispersion elements: 5
Number of elements: 17