Canon Extender EF 1.4x  type_Viewfinders The Feisol CM-1471 is a

The Feisol CM-1471 is a heavy duty carbon fibre monopod with twist-lock legs

but pretty solid image quality throughout the zoom range

This adapter is does not preserve infinity focus and is intended for use with bellows (though it will fit directly to a camera

but it's a real gem of a lens

including most DSLRs

Canon Extender EF 1.4x &nbsptype_Viewfinders The Feisol CM-1471 is aCanon Extender EF 1. 4x teleconverter, in excellent cosmetic condition. Increases the effective focal length of the lens mounted to it by 1. 4x while maintaining complete communication between lens and camera. Canon's teleconverters are not general purpose: they will work specific lenses only, and autofocus function may vary by lens and camera. Be sure to check compatibility before buying! Clean glass and excellent function.