The ring adapter and filter holder is attaches to lens to hold both square and round filters, as well as optional modular accessories such as the Cokin Modular Hood & Coupling Ring.
72mm Ring Adapter Filter-holder which can be precisely adjusted, coupled to the lens by means of a screw-in adaptor ring. The filter-holder has four grooves. One takes round filters,which can be rotated in the groove. The three others take squarefilters which can be adjusted up or down at will.
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