This screw-on hood is designed for Panasonic 20mm f / 1.7, Panasonic 14mm f / 2.5 and other lenses with a 46mm filter thread. The front thread has a size of 55mm and can be used to mount a filter or lens cap For lenses: Panasonic Lumix G 14mm f/2.5 ASPH. Panasonic Lumix G 20mm f/1.7 ASPH. Panasonic Lumix G 20mm f/1.7 II ASPH. Panasonic Lumix G Vario 14-42mm f/3.5-5.6 II ASPH. Leica Summilux-M 50mm f/1.4 ASPH. Leica Summilux 35mm f/1.4 ASPH. Leica Summicron-M 28mm f/2 ASPH. Leica Elmar-M 24mm f/3.8 ASPH.