Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical IF A16 Canon EF-S

Weight: 430 g
Brand: Tamron
Description: Bayonet mount: Canon EF-S, lens type: standard, focal length: variable, autofocus, for non-full frame cameras only, min. focal length: 17 mm, max. focal length: 50mm, Aperture
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: Canon EF-S
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