Comparison of Canon EF 28-80mm f/3.5-5.6 II and Tamron AF 28-80mm f/3.5-5.6 Aspherical

Attribute	Tamron AF 28-80mm f/3.5-5.6 Aspherical ×	Canon EF 28-80mm f/3.5-5.6 II ×
Filter Size (mm)	58	58
Closest Focus (m)	0.7	0.38
Magnification Ratio (x)	0.13	0.26
Focus Details	-	Front group rotating system with Micromotor
Front Element Rotation	-	-
Zoom System	Rotary	Rotary
Lens Construction	7 elements in 7 groups	10 elements in 10 groups
Focal Length (mm)	28.00 - 80.00	28.00 - 80.00
APS Equivalent	1.5x: 42 - 120mm; 1.6x: 44.8 - 128mm	45 - 128mm
Brand	Tamron	Canon
Image Circle	35mm	35mm
Name	Tamron AF 28-80mm f/3.5-5.6 Aspherical	Canon EF 28-80mm f/3.5-5.6 II
Weight (g)	237	200
Type	Standard Zoom	Standard Zoom
Aperture (f)	3.50 - 22.00	3.50 - 38.00
Diaphragm Blades	6	5
Diagonal Angle of View (degree)	30.00 - 75.00	25.00 - 65.00
Length (mm)	70.4	71
Notes	Available AF Mounts: Canon, Minolta, Nikon; Included Accessories: Lens Hood	-
Diameter (mm)	72	67