This image shows a Vivitar Series 1 90mm f2.5 Macro Lens.
<a href="//commons.wikimedia.org/wiki/User:Helmut_Sch%C3%BCtz" title="User:Helmut Schütz">Helmut Schütz</a>
CC BY-SA 2.5
<span class="int-own-work" lang="en">Own work</span>