Comparison of Nikon AF-S TC-20E II 2X and Nikon AF-S TC-20E III 2X

Attribute	Nikon AF-S TC-20E II 2X ×	Nikon AF-S TC-20E III 2X ×
Type	Teleconverter	Teleconverter
Name	Nikon AF-S TC-20E II 2X	Nikon AF-S TC-20E III 2X
Weight (g)	355	330
Image Circle	35mm	35mm
Brand	Nikon	Nikon
Magnification Ratio (x)	2	2
Lens Construction	7 elements in 6 groups	7 elements in 5 groups (with 1 aspherical element)
Notes	Compatible with AF-S and AF-I Nikkor lenses except AF-S 17-35mm f/2.8D IF-ED and AF-S 28-70mm f/2.8D IF-ED.	Designed for use with AF-S and AF-I Nikkor lenses. See Description tab for compatibility.
Diameter (mm)	66	66
Focal Length Multiplier	2X that of the master lens	2X that of the master lens
Effective Reduction in Aperture	2 f-stops	2 f-stops
Length (mm)	55	46