Reference: 90431445
Lens diameter 52mm - 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: 90431445
Reference: 90431708
Reference: 90431608
Reference: 90431731
Reference: 90431498
Reference: 90431737
Reference: 90431722
Reference: 90431688
Reference: 90431689
Reference: 90431604
Reference: 90431600
Reference: 90431720
Reference: 90431697
Reference: 90431728
Reference: 90431448
Reference: 90431599