Canon Extender EF 1.4x III  type_Digital Cameras There's a GPS in there

There's a GPS in there

and power cables

It even transmits pin-drive AF function

so watch yer mouth

Calibrated all shutter speeds to within 1/4rd stop accuracy

Canon Extender EF 1.4x III &nbsptype_Digital Cameras There's a GPS in thereCanon 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. Includes pouch.