B + W Adapter Ring for Filter holder 72 mm. Adapter rings for filters with diameter Ø 52/55/58/62/67/72/77/82 mm. B + W filter holders are used with square filters 100 x 100 x 2 mm and can hold up to 3 pcs. The filter holder is made of aluminum frame for increased stability. The adapter ring is required for filters of other sizes.
For more than 90 years, B+W filters have been synonymous with quality and innovation. B+W has succeeded in establishing itself as one of the world‘s leading filter manufacturers. It has, for example, made decisive progress in surface coating. B+W is the first filter manufacturer in the world to offer MRC (Multi Resistant Coating). MRC nano coating is the most innovative development in thin-layer technology. The world-famous Käsemann type polarizing filter with its outstanding quality has been produced by B+W since 1989.
