The Canon ES-68 Lens Hood is a spare or replacement hood for the Canon EF 50mm f1.8 STM lens.
Canon EW-72 Lens Hood
Urth Lens Adapter Canon FD Lens to Leica L Mount
Nikon HB-46 Lens Hood
Sigma LH680-03 Lens Hood for 105mm f2.8 EX DG OS
Olympus LH-40B Lens Hood - Black
Sigma LH1034-02 Lens Hood
