Fotodiox WonderPana 66 FreeArc Rotating Filter Holder Kit for Sigma 14-24mm Lens

Comprising the dedicated filter holder and a bracket for attaching 6.6"-wide rectangular filters, this WonderPana FreeArc Core Filter Holder and 6.6" Bracket from Fotodiox enables attaching 145mm threaded filters and caps to the lens, which itself lacks filter threads, and the included bracket can be added for working with 6.6"-wide square and rectangular filters. Once assembled, the entire system rotates a full 360 Degree for flexible placement of the filter in use.The Fotodiox WonderPana 6.6" Holder Bracket is a two-piece assembly designed to be used in combination with a Fotodiox WonderPana FreeArc Core Unit. When attached it then allows for the convenient use of two 2.5 to 4.0mm-thick filters measuring 6.6in wide, or one 6.6in wide filter along with one 145mm round filter behind it. The WonderPana 6.6" Holder Bracket features a lightweight, aluminum-alloy construction that has a corrosion-resistant, black anodized finish for durability. A rigid pouch is included for storage and transport.- WonderPana 6.6" Bracket -The WonderPana66 Upgrade Brackets are premium grade aluminum holders that attach securely to either side of the WonderPana 145 or FreeArc Core Units (sold separately). The addition of these brackets allows 6.6 inch (168mm) wide square or rectangular filters to be used with your favorite UWA/SWA lenses. These brackets allow the photographer to stack either two square/rectangular filters or one square/rectangular filter and one round 145mm filter.- WonderPana 145 Lens Cap -This Lens Cap will fit both WonderPana 145 and WonderPana FreeArc systems, it is made from premium grade, high impact plastic and will protect the front lens element when not in use.WonderPana OverviewChallenging shooting scenarios often call for adding a lens filter to save the shot. However when you're shooting with an Wide Angle or Ultra Wide Angle lens, the bulbous front lens element and lack of threads make it impossible to add filters - until WonderPana. The WonderPana is a complete filter system designed expressly for filtering UWA and WA lenses without vignetting.