Home-made filter system for Panasonic 7-14 that works at 7mm (pix): Micro Four Thirds Talk Forum: Digital Photography Review
Filters on Panasonic 7-14, my solution.: Micro Four Thirds Talk Forum: Digital Photography Review
WonderPana Absolute 145mm Filter Holder Compatible with Panasonic Lumix G Vario 7-14mm f/4.0 Aspherical Micro Four Thirds Mount Lens and Cokin X-Pro, LEE SW-150 Filter Holders : Electronics - Amazon.com