I usually detect with an Equinox 600, but for the making of a video I got a Vanquish 540 from my partner. It was very swampy terrain. After hardly the first hole dug, I found a very small silver button of Napoleon Bonaparte dating from 1812! And 30 minutes later I found this small silver change with an indication of 8-9, a Gros Tournois Philippe VI le Bel dating from 1300 AD. ! Suffice to say that I was very surprised by the performance of this detector, I who am so used to my equinox!