Schraubhalterung Objektivhaube 58 mm Blume für Canon EF 50 mm f/1,4 USM Objektiv
Normally this lens hood is screwed on top of the lens with the filter size 58mm. You have a lens with a filter size 52mm and a 58mm lens. You will need a step-up ring 52mm-58mm and you can use a lens hood for two lenses.