Reference: 90431721
Lens diameter 55mm - filter diameter 52mm.
Used to mount filters or pre-filters on lenses if the filter dimension is different than the lens dimension.
Reducing rings (also called step up or step down rings) are used to attach filters or pre-filters to lenses when the filter dimension is different from the lens dimension. Thus, they allow you to use one filter/pre-adjustment on multiple lenses. The first is the lens dimension, the second the filter dimension in mm.
Data sheet
Reference: 90431721
Reference: 90431726
Reference: 90431448
Reference: 90431738
Reference: 90431700
Reference: 90431491
Reference: 90431606
Reference: 90431494
Reference: 90431733
Reference: 90431704
Reference: 90431690
Reference: 90431692
Reference: 90431727
Reference: 90431719
Reference: 90431599
Reference: 90431693