Canon Extender EF 1.4x III format_Digital Medium Format it's built a bit more

it's built a bit more premium than your average zoom

or a bit of medium format equipment

The Minolta MC Tele Rokkor 135mm f2

but should work for most lenses 80mm and longer with similar lens diameter

with a smooth push-pull zoom action and a built-in retractable lens hood

Canon Extender EF 1.4x III format_Digital Medium Format it's built a bit moreCanon Extender EF 1. 4x III 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.