Reference: 90431716
Lens diameter 52mm - filter diameter 55mm.
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) 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: 90431716
Reference: 90431496
Reference: 90431703
Reference: 90431718
Reference: 90431453
Reference: 90431697
Reference: 90431727
Reference: 90431714
Reference: 90431731
Reference: 90431446
Reference: 90431606
Reference: 90431445
Reference: 90431499
Reference: 90431493
Reference: 90431737
Reference: 90431693