Two 30X Triplet Round Eye Loupes. This is a new set of 2 doublet lens loupes made of optical glass with round swing-away chrome plated cases. The shape allows them to rest comfortably in the eye socket. These have become the standard style of loupe used in the watch making industry and is excellent for any application where magnification is needed. In terms of performance, they are second to none. They are 30X power and have a focal distance of 1/2" (13 mm). The lenses have a 21 mm diameter. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.