This Extender L 2.0x from Leica is a teleconverter designed for the Vario-Elmarit-SL 70-200 f/2.8 ASPH. and Vario-Elmar-SL100-400mm f/5-6.3 zoom lenses, effectively doubling their zoom range. The teleconverter features eight elements in four groups and is fortified against environmental conditions with its weather-sealed design and AquaDura coating. A contact strip ensures metadata is transferred.