Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical IF A16 Minolta A

Weight: 430 g
Brand: Tamron
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, internal focusing
Length: 83.2 mm
Diameter: 73.8 mm
Max. focal length: 50 mm
Min. focal length: 17 mm
Focal length: Variable
Lens type: Standard
Zoom ratio: 2.9x
Max viewing angle: 78.45 deg.min
Minimum focus distance: 0.27 m
Auto focus: There is
For non-full frame cameras only: Yes
Bayonet: Minolta A
Filter thread diameter: 67 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: 7
Minimum viewing angle: 31.11 degrees min
Number of aspherical elements: 2
Number of element groups: 13
Number of low dispersion elements: 1
Number of elements: 16