Comparison of Fujinon XF 2X TC WR and Pentax 1.4X-L

Attribute	Pentax 1.4X-L ×	Fujinon XF 2X TC WR ×
Type	Teleconverter	Teleconverter
Name	Pentax 1.4X-L	Fujinon XF 2X TC WR
Weight (g)	175	170
Image Circle	35mm	APS-C (Fujifilm X-mount)
Brand	Pentax	Fujinon
Magnification Ratio (x)	1.4	1.4
Lens Construction	5 elements in 5 groups	9 elements in 5 groups
Notes	Usable Lenses: SMC Pentax A-, F-, M-lenses	For Fujifilm X-mount; Weather- and dust-resistant.
Diameter (mm)	65.5	58
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	30.2