Custom filter holder for the Rokinon/Samyang 14mm f/2.8 ED AS IF UMC Lens; Light sealed, prevents flare inside filter holder _ 145mm wide design reduces vignetting
Constructed from aluminum-alloy with a corrosion-resistant coating for durability; Maintains low weight for reduced stress on lens
Includes Fotodiox 145mm ND16 (4-stop) and ND32 (5-stop) filters; Double threaded for stacking totaling 9-stops of neutral density _ lightweight optical glass filters with anodized aluminum rings
FreeArc rotates 360°, controls horizon line for Fotodiox square GND with WonderPana 66 brackets (sold separately); Securely attaches to lens as if part of design, adds a stylish profile to your setup
Limited 2-year manufacturer warranty



The WonderPana FreeArc is a line of all metal filter holders for super-wide angle (SWA) and ultra-wide angle (UWA) lenses that make it impossible to use standard filters. With the FreeArc, the filter stage is rotatable 360° when paired with the WonderPana 66 filter holder and Fotodiox 6.6x8.5in rectangular filters: GND 0.6SE, 0.6HE, 0.9SE, 0.9HE, and reverse GND 0.6SE (66 bracket and rectangular filters sold separately). This action allows you to control the horizon line of Fotodiox rectangular GND filters without having to adjust your camera. The custom fit of each core prevents any light leak which drastically reducing the possibility of unwanted flare. The ND kit includes two Fotodiox 145mm neutral density filters which can be used to create long exposure images or compensate for bright shooting scenarios. The kit comes with a ND16 (4-stop) and ND32 (5-stop) filter that feature an anodized aluminum ring and are constructed from optical glass for optimum resolution. The filters are also double threaded which allows them to be stacked to create a total of 9-stops of neutral density. This WonderPana FreeArc core is only compatible the Rokinon/Samyang 14mm f/2.8 ED AS IF UMC lens and can be used with Fotodiox's large selection of 145mm filters. These include double threaded slim filters such as: ND4, ND8, ND16, ND32, ND100, MC-UV, CPL, MC-CPL. Other filters include single threaded ultra slim ND4, ND8, ND16, ND32, and ND100. Note: Filter stacking will cause vignetting. The rubber 'nubs' on the core do not serve a purpose other than in the manufacturing process, they may be discarded. All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.