Comparison of Canon EF 28-90mm f/4-5.6 III and Canon EF 28-90mm f/4-5.6 II USM

Attribute	Canon EF 28-90mm f/4-5.6 III ×	Canon EF 28-90mm f/4-5.6 II USM ×
Aperture (f)	4.00 - 32.00	4.00 - 32.00
Diagonal Angle of View (degree)	27.00 - 75.00	27.00 - 75.00
Magnification Ratio (x)	0.3	0.3
Filter Size (mm)	58	58
Type	Standard Zoom	Standard Zoom
Closest Focus (m)	0.38	0.38
APS Equivalent	45 - 144mm	45 - 144mm
Focus Details	-	USM
Image Circle	35mm	35mm
Focal Length (mm)	28.00 - 90.00	28.00 - 90.00
Brand	Canon	Canon
Name	Canon EF 28-90mm f/4-5.6 III	Canon EF 28-90mm f/4-5.6 II USM
Weight (g)	190	190
Zoom System	Rotary	Rotary
Diaphragm Blades	5	5
Diameter (mm)	67	67
Length (mm)	71	71
Front Element Rotation	-	-
Lens Construction	10 elements in 8 groups, including 1 aspherical element	10 elements in 8 groups, including 1 aspherical element