Reference: 90431446
Lens diameter 43mm - filter diameter 58mm.
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: 90431446
Reference: 90431692
Reference: 90431605
Reference: 90431500
Reference: 90431693
Reference: 90431492
Reference: 90431688
Reference: 90431708
Reference: 90431732
Reference: 90431451
Reference: 90431720
Reference: 90431709
Reference: 90431495
Reference: 90431706
Reference: 90431733
Reference: 90431695