Comparison of Canon EF 400mm ƒ/4 DO IS II USM and Nikon 200-400mm f/4G ED-IF AF-S VR Nikkor

Attribute	Canon EF 400mm ƒ/4 DO IS II USM ×	Nikon 200-400mm f/4G ED-IF AF-S VR Nikkor ×
Aperture (f)	4.00 - 32.00	4.00 - 22.00
Filter Size (mm)	52	52
Notes	Image Stabilization (4 stops); Weather-sealed construction	Image Stabilization; Included Accessories: HK-30 Hood, CL-L2 Soft Case, tripod mounting collar
Closest Focus (m)	3.3	1.95
Magnification Ratio (x)	0.13	0.27
Diameter (mm)	128	124
Type	Telephoto Prime	Telephoto Zoom
APS Equivalent	640mm	300 - 600mm
Diaphragm Blades	9	9
Image Circle	35mm	35mm
Focal Length (mm)	400.00	200.00 - 400.00
Brand	Canon	Nikon
Name	Canon EF 400mm ƒ/4 DO IS II USM	Nikon 200-400mm f/4G ED-IF AF-S VR Nikkor
Weight (g)	2100	3300
Diaphragm Blades Type	rounded	-
Lens Construction	18 elements in 12 groups, including 1 aspheric and 1 UD element; Newly-developed gapless dual-layer diffractive optical (DO) elements	24 elements in 17 groups, including 4 ED elements
Diagonal Angle of View (degree)	6.20	6.20 - 12.30
Length (mm)	233	358
Zoom System	-	Rotary
Focus Details	Inner focusing; full-time manual focus and ring USM	Internal; Silent Wave Motor