Vintage from the 1980s Materials: metal, glass This is an original SMC Pentax-M 50mm f/1.7 lens, ALL photos were taken by myself of the same lens. This lens is in excellent condition; without any scratches on the lens, cracks in the metal or scratches! No separation; the glass may need to be cleaned again as I am not a professional lens cleaner! A little dust on the caps, but otherwise in perfect condition!, . The caps (both) are included.