This post kicks off a series of tips and techniques from Digitizing Your Photos. These posts will focus on a particular technique from the multimedia eBook, and include one of the videos from the book.
It’s common for vintage prints to exhibit Silver Mirroring (or Silvering). The reflections caused by residual silver can obscure the shadow detail in the print. Fortunately, it’s easy to remove the mirroring in the copy photo through the use of simple cross-polarization. This video shows how to cross-polarize and what the effect looks like.
This video appears on page 48 of Digitizing Your Photos with Your Camera and Lightroom.