Reference: 90431726
Lens diameter 46mm - filter diameter 49mm.
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: 90431726
Reference: 90431606
Reference: 90431691
Reference: 90431723
Reference: 90431453
Reference: 90431500
Reference: 90431717
Reference: 90431732
Reference: 90431714
Reference: 90431452
Reference: 90431724
Reference: 90431607
Reference: 90431730
Reference: 90431699
Reference: 90431449
Reference: 90431609