FOCUS ASS'Y, USM

Canon YG2-2294-000 FOCUS ASSEMBLY, USM is a replacement focus assembly listed for the Canon EF 50 mm 1:1.2L USM lens. It is a specific internal component identified in Canon’s parts catalog, intended for that lens’s focus system.

The catalog names the part as a USM focus assembly and lists it separately from the lens’s switch panel and main PCB assemblies. This helps identify its role as a focus-system component rather than a complete lens or a general accessory.

This part is catalogued for the EF 50 mm 1:1.2L USM model. The catalog does not specify package contents beyond the assembly listing.