After seeing a previous review with a mention by Gus Lazzari, I decided that his idea of adding a Leica red lens dot to the AF/MF of the NEX-7 was something I wanted to try. Im frugal and wanted to do this but not pay for a Leica part. My daughter however has a ton of beads, she won't miss just one! I took a small white/pearlescent one, took an Exacto knife and split it down the middle then sanded it lightly to get a nice flat surface. Cleaned the existing button and the bead half with isopropyl alcohol, then a toothpick with a tiny bit of superglue to attach. Much easier to zoom focus now.