Review: Panasonic 7-14mm f4 (Micro Four Thirds) - The Phoblographer
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
pvgear ND Filter Adapter für Panasonic 7–14 mm f/4.0 Weitwinkel Objektiv: Amazon.de: Elektronik & Foto