Reference: 90431726
Lens diameter 82mm - filter diameter 77mm.
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
Specific References
Reference: 90431726
Reference: 90431728
Reference: 90431731
Reference: 90431718
Reference: 90431723
Reference: 90431449
Reference: 90431725
Reference: 90431734
Reference: 90431740
Reference: 90431500
Reference: 90431609
Reference: 90431719
Reference: 90431606
Reference: 90431690
Reference: 90431711
Reference: 90431497