Fotodiox WonderPana FreeArc – Advanced System for Wide-Angle Lenses
If you are landscape photographers the Fotodiox Wonderpana adapters something you should definitely need to check out. This innovative adapter system for ultra wide angle lenses will allow you to connect different filters (polarizes, ND, variable ND etc.) to you wide angle lens (not a simple matter typically) for capturing images of extreme high dynamic range or removing reflections shooting water leafs and more.
You can find out more info on the Fotodiox Wonderpana system (including price, specific kits and the different filters available) on the Fotodiox website.