The 46mm thread diameter allows sharing of filters with the Panasonic 14mm, 20mm, 25mm, 45mm, and Olympus 12mm lenses.
Panasonic | Lens | Lens, Pas-de-Calais | Independent Lens | Nicholas Lens | lens | Fresnel lens | Single-lens reflex camera | Panasonic Lumix 45mm lens | Panasonic Lumix G 14mm lens | Panasonic Lumix 20mm lens | Panasonic Leica DG 25mm lens | Mercedes-Benz Vario | M42 lens mount | Lens (optics) | Judith of Lens | Digital single-lens reflex camera | Ultra wide angle lens | Through-the-lens metering | Mirrorless interchangeable-lens camera | Lens (Pas-de-Calais) | lens (anatomy) | Lambert II, Count of Lens | Bernard Lens | Achromatic lens | Zoom lens | zoom lens | Telephoto lens | single-lens reflex camera | Sidney Lens |
The 46mm thread lets a Micro Four Thirds user share filters between it, the Panasonic 14mm, Panasonic Lumix 20mm, Panasonic Leica 45mm, Panasonic 45-175mm, Olympus 12mm and Olympus 60mm Macro lenses.