Sigma AF 18-50mm f/3.5-5.6 DC Nikon F

Weight: 250 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
Length: 62 mm
Diameter: 67.5mm
Max. focal length: 50 mm
Min. focal length: 18 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 2.8x
Max viewing angle: 69.3 deg.min
Minimum focus distance: 0.25 m
Auto focus: There is
For non-full frame cameras only: Yes
Bayonet: Nikon F
Filter thread diameter: 58 mm
Aperture F at max. focal length: 5.6
Aperture F at min. focal length: 3.5
Minimum aperture F: 22
Number of aperture blades: 7
Minimum viewing angle: 27.9 deg.min
Number of aspherical elements: 1
Number of element groups: 8
Number of elements: 8