Canon FD Mount JC Penney Auto Tele Converter 2X with Caps for Canon Camera (AE-1 A-1, Etc.)
Here we have a JC Penney produced Canon FD mount Automatic Tele Converter Doubler (2X) for Canon SLR cameras. It is in excellent condition and includes both caps.
This tele converter will effectively double the focal range of any Canon FD lens. Multiplying the focal length by a factor of two will essentially turn your 50mm lens into a 100mm lens, your 28mm lens into a 56mm lens, etc.
The teleconverter will be carefully packaged and shipped immediately.