Walking the streets of old San Juan, I noted this door, securely locked. The color version was "blah". The detail of the age of the door was lost. However, in Nik Silver Efex, I got the detail that I wanted...an old lock with modern additions. Shot on Nikon's D-600, 24-85 kit lens, opened in CS-2, with an exposure of 1/200@F/6.3.