Comparison of Kenko Teleplus MC 7 AF 2X and Tamron SP AF 2X PRO

Attribute	Tamron SP AF 2X PRO ×	Kenko Teleplus MC 7 AF 2X ×
Type	Teleconverter	Teleconverter
Name	Tamron SP AF 2X PRO	Kenko Teleplus MC 7 AF 2X
Weight (g)	184	170
Image Circle	35mm	35mm
Brand	Tamron	Kenko
Magnification Ratio (x)	2	2
Lens Construction	7 elements in 4 groups	7 elements in 5 groups
Notes	Available AF Mounts: Canon, Minolta, Nikon	Available AF Mounts: Canon, Minolta, Nikon, Pentax
Diameter (mm)	68.5	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)	43.5	35.7