This loupe is the newest loupe made by Harald Schneider. This loupe featues an achromatic, aplanatic triplet lens made of the finest quality materials. This model has a 20MM lens and has the highest depth of focus of any Schneider loupe. Carry case and neck strap is included with every purchase. The L2 causes less strain on the eyes than the Original Schneider loupe as well as the L1 model. This loupe is made in Germany. According the Harald Schneider, the L2 loupe has a new lens system which delivers more clarity and depth. Quite simply, this is the best loupe in the world.