This NDH100-82 Filter Holder Kit from Sirui allows for the convenient use of up to three separately available 100mm wide, 2mm thick filters along with an included circular polarizer. Use of the filter holder kit is easily accomplished by first screwing one of its included 67, 72, or 77mm adapter rings onto a lens or step-up ring with corresponding front filter threads. After being fitted onto the adapter ring, the filter holder's pull-and-release locking pin helps to provide a reliable connection that allows the holder to be rotated 360, further benefiting the use of graduated neutral density and other filters that are enhanced by varied positioning. Together, any one of the included adapter rings and the filter holder also accommodate the included circular polarizer filter.

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