Canon EF EXTENDER 1.4X II エクステンダー (サンプルフォト)

EF EXTENDER 1.4X II  Photo by Rick Mattick 

EF EXTENDER 1.4X II Paul Stein 

EF EXTENDER 1.4X II Photo by Rick Mattick 

EF EXTENDER 1.4X II Photo by Rick Mattick 

EF EXTENDER 1.4X II Photo by Rock Mattick

EF EXTENDER 1.4X II Photo by Ryan Poplin

Made of Canon's extra sharp Fluorite glass, the 1.4x Tele-converter will give a 40% increase in magnification to any lens attached to it,

at the cost of only one f-stop of light transmission. A 200mm f/4 lens, for example, becomes a 280mm f/5.6 lens with the 1.4x Tele-converter behind it.