Vivitar Automatic Tele Converter for Minolta MC MD Mount Lens with Caps Japan Vivitar Automatic Tele Converter for Minolta SR/MC/MD mount cameras. This vintage lens accessory increases the focal length of your compatible Minolta lenses, allowing for greater reach in telephoto photography. It features a durable metal construction with a black finish and includes Minolta-branded front and rear lens caps for protection. Made in Japan, this teleconverter maintains automatic diaphragm coupling for convenient operation. The exterior shows some signs of wear consistent with age, but the glass elements appear clear. #Vintage