• The WonderPana you see on this page was designed specifically for the ** Rokinon/Samyang 14mm f/2.8 ED AS IF UMC lenses (including the Rokinon 14mm T3.1 Cine lens). It does not fit other lenses, so it is very important that you choose the correct Wonderpana Core system for your particular lens model. - **Note that this only applies to the manual focus version of the lens. In demanding shooting situations, a lens filter is often required to save the shot. However, if you're shooting with a wide-angle or ultra-wide-angle lens, the bulbous front lens element and lack of thread make it impossible to add filters - until WonderPana came along. WonderPana is a complete filter system specifically designed to filter UWA and WA lenses without vignetting. With a selection of over 20 different custo.