Vivitar 1.5x Auto Tele Converter for Canon FD Cameras, 1.5x the focal length of your telephoto lens so will make a 200mm lens a 300mm focal length, as with all 1.5x converters you loose one stop of light so will make an f4 lens effectively and f5.6 speed, cosmetically this converter is in mint condition with no signs of wear, optically the converter is in good condition and free from fungus and haze.

Teleconverters

S816 (16)