Comparison of Panasonic DMW-STC2 2X and Sony SEL20TC 2X

Attribute	Panasonic DMW-STC2 2X ×	Sony SEL20TC 2X ×
Type	Teleconverter	Teleconverter
Name	Panasonic DMW-STC2 2X	Sony SEL20TC 2X
Weight (g)	230	207
Image Circle	35mm (L-Mount)	35mm
Brand	Panasonic	Sony
Magnification Ratio (x)	2	2
Lens Construction	8 elements in 4 groups, including 2 UHR (Ultra High Refractive Index) elements	8 elements in 5 groups, including 1 aspherical element
Notes	Splash, Dust, and Freezeproof design; Compatible with select L-Mount lenses	For Sony E-mount; Compatible Lenses: Sony SEL70200GM and SEL100400GM lenses.
Diameter (mm)	65.3	62.4
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)	41.6	42.7