Vivitar Series 1 (Kiron) 70-210mm f/3.5 Lens

UPDATE The lens is not in the best condition. It has been for sale for about 5 years and has gradually deteriorated while stored. It appears to have fungus or glaze. I don't know if it affects image quality, I don't have a camera. But from what I see, it might. New images added for review. Analog-era Vivitar lens from the series known for superior build and quality, Series 1, manufactured by Kiron. With a 67mm diameter, it features a constant aperture of f/3.5 throughout the entire zoom range. Equipped with Canon FD mount. Minor issue: To adjust the aperture, you need to hold the adjacent ring. No oil on the blades, nor fog spots on the lenses. The macro function works properly. Includes UV filter, front and rear lens caps. Selling because I'm not using it. More information available at this website http://www.robertstech.com/vivitar.htm