Panasonic LUMIX G II 20mm f/1.7 ASPH. Lens (Black)This pancake style prime lens is compatible with all Panasonic Lumix G cameras. The Lumix G 20mm f 1. 7 lens has a 35mm equivalent focal length of 40mm, along with a fast f 1. 7 aperture that works perfectly fine in low light conditions. The 7 blade rounded aperture produces pleasing bokeh even in out of focus regions of images. The lens is also equipped with two aspherical elements that minimize distortions and chromatic aberrations. State of the Art