Comparison of Olympus EC-20 2X Zuiko Digital and Panasonic DMW-STC2 2X

Attribute	Panasonic DMW-STC2 2X ×	Olympus EC-20 2X Zuiko Digital ×
Type	Teleconverter	Teleconverter
Name	Panasonic DMW-STC2 2X	Olympus EC-20 2X Zuiko Digital
Weight (g)	230	225
Image Circle	35mm (L-Mount)	Four-thirds
Brand	Panasonic	Olympus
Magnification Ratio (x)	2	2
Lens Construction	8 elements in 4 groups, including 2 UHR (Ultra High Refractive Index) elements	7 elements in 5 groups
Notes	Splash, Dust, and Freezeproof design; Compatible with select L-Mount lenses	Can be attached to any ZUIKO DIGITAL interchangeable lens. Dust & Drip Proof. Included Accessories: Lens Cap (BC-1), Lens Case (LSC-0814).
Diameter (mm)	65.3	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)	41.6	41