This sale is for a really excellent condition Mamiya 645-fit Vivitar 2x teleconverter including both caps.
It has perfect glass, with minimal signs of use, exc++ condition. This top quality 6-element 2x converter will double the focal length of any Mamiya 645 standard or telephoto lens when attached between the camera body and the lens. Your 150mm now becomes a 300mm !
A great addition to any Mamiya manual focus 645 system, and suitable for use with any Mamiya M645, M645J, 1000S, 645E, 645 Super, Pro or Pro TL camera – or even a 645AF series body if used with 645 manual focus lenses.