Comparison of Canon EF 400mm f/2.8L IS USM and Nikon 400mm f/2.8G IF-ED AF-S VR Nikkor

Attribute	Canon EF 400mm f/2.8L IS USM ×	Nikon 400mm f/2.8G IF-ED AF-S VR Nikkor ×
Aperture (f)	2.80 - 32.00	2.80 - 22.00
Filter Size (mm)	52	52
Notes	Image Stabilization	Image Stabilization
Closest Focus (m)	3	2.9
Magnification Ratio (x)	0.15	0.16
Diaphragm Blades Type	-	rounded
Type	Telephoto Prime	Telephoto Prime
APS Equivalent	640mm	600mm
Diaphragm Blades	8	9
Image Circle	35mm	35mm
Focal Length (mm)	400.00	400.00
Brand	Canon	Nikon
Name	Canon EF 400mm f/2.8L IS USM	Nikon 400mm f/2.8G IF-ED AF-S VR Nikkor
Weight (g)	5370	4620
Diagonal Angle of View (degree)	6.20	6.20
Lens Construction	17 elements in 13 groups, including 1 flourite and 2 UD elements	14 elements in 11 groups, including 3 ED glass elements, one Nano Crystal Coat and one meniscus protective glass element
Diameter (mm)	163	159.5
Length (mm)	349	368
Zoom System	-	n/a
Focus Details	Inner focusing; full-time manual focus and USM	Internal; Silent Wave Motor; M/A switch