Comparison of Canon EF 20-35mm f/3.5-4.5 USM and Nikon 18-35mm f/3.5-4.5D ED-IF AF Nikkor

Attribute	Nikon 18-35mm f/3.5-4.5D ED-IF AF Nikkor ×	Canon EF 20-35mm f/3.5-4.5 USM ×
Filter Size (mm)	77	77
Aperture (f)	3.50 - 22.00	3.50 - 27.00
Closest Focus (m)	0.33	0.34
Magnification Ratio (x)	0.15	0.13
Type	Wide Zoom	Wide Zoom
Focus Details	Internal	Inner focusing; full-time manual focus and USM;
APS Equivalent	27 - 52mm	32 - 56mm
Diameter (mm)	81	83.5
Image Circle	35mm	35mm
Focal Length (mm)	18.00 - 35.00	20.00 - 35.00
Brand	Nikon	Canon
Name	Nikon 18-35mm f/3.5-4.5D ED-IF AF Nikkor	Canon EF 20-35mm f/3.5-4.5 USM
Weight (g)	369	340
Diagonal Angle of View (degree)	62.00 - 100.00	63.00 - 94.00
Diaphragm Blades	7	5
Zoom System	Rotary	Rotary
Length (mm)	84	68.9
Notes	Included Accessories: HB-23 Hood	-
Lens Construction	11 elements in 8 groups, including 1 aspherical and 1 ED element	12 elements in 11 groups