Reference: 90431734
Lens diameter 30,5mm - filter diameter 37mm.
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: 90431734
Reference: 90431451
Reference: 90431736
Reference: 90431724
Reference: 90431738
Reference: 90431608
Reference: 90431449
Reference: 90431689
Reference: 90431740
Reference: 90431711
Reference: 90431704
Reference: 90431722
Reference: 90431455
Reference: 90431687
Reference: 90431702
Reference: 90431448