This is the relatively rare Vivitar Series One 2x converter. It is specifically designed for the Vivitar Sreies One 450mm lens to make it an effective 900mm lens. The adapter shows some wear on one face (photo 2) where part of the writing has worn off. Otherwise the lens is in Excellent cosmetic and optical condition. Remember that mirror lenses have no diaphragm. Exposure can only be changed by using neutral density filters or adjusting the shutter sped.

I am selling the cameras and photo equipment I have collected over the past fifty years. They have not been film tested but appear to function correctly (film winds on, shutter fires, f/stops change, focus works). Shutter speeds sound approximately correct to my ear but speeds have not been electronically tested. I have disclosed any problems that I am aware of and have tried to act like a fussy sharp-eyed buyer in evaluating the cameras and lenses. The items have been stored in an air-conditioned non-smoking home. Remember that many of these items are classics, over forty years old, and inevitably will show some wear and signs of age.

 

To avoid customs delays and hassles, I will only ship to the USA or Canada and accept only payments via PayPal. Please ask any questions before you bid. My goal is to make every buyer fully satisfied and each transaction free from hassle. Please let me know if you are not satisfied with the item received. I would appreciate positive feedback if you are pleased with the transaction.