Reference: 90431738
Lens diameter 40,5mm - filter diameter 46mm.
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: 90431738
Reference: 90431723
Reference: 90431716
Reference: 90431691
Reference: 90431493
Reference: 90431735
Reference: 90431694
Reference: 90431687
Reference: 90431498
Reference: 90431711
Reference: 90431730
Reference: 90431732
Reference: 90431499
Reference: 90431496
Reference: 90431736
Reference: 90431606