Comparison of Canon EF 200-400mm f/4L IS USM Extender 1.4X and Nikon 180-400mm f/4E TC1.4 FL ED VR Nikkor

Attribute	Canon EF 200-400mm f/4L IS USM Extender 1.4X ×	Nikon 180-400mm f/4E TC1.4 FL ED VR Nikkor ×
Aperture (f)	4.00 - 32.00	4.00 - 45.00
Filter Size (mm)	52	5
Notes	Built-in 1.4x extender (8 elements in 4 groups) switches to 280-560mm f/5.6 lens with 0.21x / 1.48 magnification ratio; 4-stop Image Stabilization	Built-in 1.4x Teleconverter; VR Image Stabilization up to 4 stops; Sealed against dust and moisture.
Closest Focus (m)	2	2
Magnification Ratio (x)	0.15	0.25
Zoom System	Rotating	Rotary
Type	Telephoto Zoom	Telephoto Zoom
APS Equivalent	320 - 640mm	270 - 600mm (378 - 840mm with built-in TC engaged)
Diaphragm Blades	9	9
Image Circle	35mm	35mm
Focal Length (mm)	200.00 - 400.00	180.00 - 400.00
Brand	Canon	Nikon
Name	Canon EF 200-400mm f/4L IS USM Extender 1.4X	Nikon 180-400mm f/4E TC1.4 FL ED VR Nikkor
Weight (g)	3620	3500
Diaphragm Blades Type	circular	rounded
Lens Construction	25 elements in 20 groups (incl. 1 rear filter); one fluorite and four UD lens elements	27 elements in 19 groups, including 1 Fluorite element and 8 ED elements; Nano Crystal Coat; Super Integrated Coating
Diagonal Angle of View (degree)	6.20 - 12.00	6.20 - 13.40
Length (mm)	366	362.5
Diameter (mm)	128	128
Focus Details	Inner focusing; Full-time manual focus and ring USM; Ring USM, High-speed CPU and optimized AF algorithms; Power Focus mode; Focus Limiter	Internal SWM (AF-S); AF Recall Mode; Focus Range Limiter (2m to infinity (Full) or 6m to infinity); A/M, M/A, M Mode Switch