http://www.ebay.com/sch/i.html?_odkw=30x+loupe&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR2.TRC1.A0.X60x+loupe&_nkw=60x+loupe&_sacat=0
Its basically personal preference.. They are all cheap made in china magnifiers but they will work, a jewelers loupe is simple and reliable but sometimes...