Comparison of Olympus MC-20 2X M.Zuiko Digital and Pentax 1.4X-L

Attribute	Pentax 1.4X-L ×	Olympus MC-20 2X M.Zuiko Digital ×
Type	Teleconverter	Teleconverter
Name	Pentax 1.4X-L	Olympus MC-20 2X M.Zuiko Digital
Weight (g)	175	150
Image Circle	35mm	Micro Four-thirds
Brand	Pentax	Olympus
Magnification Ratio (x)	1.4	2
Lens Construction	5 elements in 5 groups	9 elements in 4 groups, including 1 HR element; ZERO coating
Notes	Usable Lenses: SMC Pentax A-, F-, M-lenses	Dustproof, Splashproof and Freezeproof; Included Accessories: Lens Cap (BC-3), Rear Lens Cap (LR-2), Lens Case (LSC-0603).
Diameter (mm)	65.5	59.8
Focal Length Multiplier	1.4X that of the master lens	2X that of the master lens
Effective Reduction in Aperture	1 f-stop	2 f-stops
Length (mm)	28.5	25.9