A precision-crafted tool for photographers and videographers, the NiSi Brass Pro 67-82mm Step-Up Ring is an essential accessory designed to expand the compatibility of your lens collection. This step-up ring enables the attachment of 82mm threaded filters onto lenses that are equipped with 67mm standard filter threads, thereby allowing for a wider range of filter applications without the need to purchase multiple filter sizes.Constructed from high-quality brass, this step-up ring boasts superior durability over its aluminum counterparts. The robust brass frame ensures a secure fit and reduces the likelihood of cross-threading or sticking, which can often occur with aluminum rings. The knurled sides of the ring provide an enhanced grip, facilitating easy attachment and removal from your lens, even in challenging shooting conditions.The NiSi Brass Pro Step-Up Ring is meticulously engineered with a special anti-reflective felt treatment on the interior of the frame.