Pentax all metal telezoom lens introduced in 1983 (pentax K module started in 1975) f 1:4 70-210mm and macro With "A" diaphragm position to be used with SLR cameras with Program as well as Shutter or Diaphragm priority and manual functions. The 13 lens elements (in 10 groups) are clear no scratches no fog no fungus and hardly almost impossible to notice with naked eyes dust particles. The diaphragm ring is little stiff but 8 blades function as should very well. The zoom function is smooth stays well in place but with gravity probably it might slide down very slowly when vertical The sun shield is completely loose. Included front rear pentax caps Well packed and delivered