Comparison of Kenko Teleplus PRO 300 AF DG 2X and Tamron SP AF 2X PRO

Attribute	Tamron SP AF 2X PRO ×	Kenko Teleplus PRO 300 AF DG 2X ×
Type	Teleconverter	Teleconverter
Name	Tamron SP AF 2X PRO	Kenko Teleplus PRO 300 AF DG 2X
Weight (g)	184	184
Image Circle	35mm	35mm
Brand	Tamron	Kenko
Magnification Ratio (x)	2	2
Lens Construction	7 elements in 4 groups	7 elements in 4 groups
Notes	Available AF Mounts: Canon, Minolta, Nikon	Available AF Mounts: Canon, Minolta, Nikon
Diameter (mm)	68.5	68
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)	43.5	43.5