Which lenses can be used with the Canon EF 1.4x III Extender?

Q. Which lenses can be used with the Canon EF 1.4x III Extender?

A.

"Extender" is Canon’s name for a Teleconverter. 

These high-performance accessories multiply the effective focal length of an attached lens by 1.4x or 2x. For example, a 200mm lens with Extender 1.4x has an effective focal length of 280mm: with the Extender 2x, this increases to 400mm. 

Extenders are only compatible with selected EF lenses listed in the following chart;

http://www.wexphotographic.com/blog/canon-teleconverter-compatibility-chart