Reference: 90431728
Lens diameter 34mm - 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: 90431728
Reference: 90431738
Reference: 90431687
Reference: 90431731
Reference: 90431688
Reference: 90431703
Reference: 90431740
Reference: 90431607
Reference: 90431494
Reference: 90431699
Reference: 90431498
Reference: 90431453
Reference: 90431499
Reference: 90431737
Reference: 90431734
Reference: 90431721