Challenging 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 with vignetting. With a selection of 20+ Different Custom Lens Mounts, Plus Over 25 Different Filter, there is a Perfect Creative Combination for Any Photographer or VideoGographer. WE Offer 145mm Round Circular Polarizer Filter, Neutral Density ND4-1000, and a Selection of 6.6 "Soft and Hard Eded Rotating Square Gradient Filter. Please note: The Wonderpana you see on this page is custom engineered to fit the Sigma 14mm F/2.8 EX HSM RF. I.
eBay