Me and my daughter went out to a local park and took the camcorder and the 3D. I had her film all the nickel targets. Out of the 12 targets that registered nickel 10 were actually nickels. We found a few other coins but I was mostly digging the nickel signals. The ground was pretty hard so it made digging a little tougher.
http://www.youtube.com/watch?v=BTOL2mfys6Q
http://www.youtube.com/watch?v=BTOL2mfys6Q