NOTE: THIS IS A 4/3 MOUNT LENS! IT DOES NOT MOUNT DIRECTLY TO MICRO 4/3RDS CAMERAS. YOU MUST HAVE AN ADAPTER
The Summilux 25mm f/1.4 is designed by Leica for 4/3 cameras. In addition to its ultra-wide aperture it features an aspherical element and multiple layer coatings to prevent chromatic aberration, has a 7 blade circular aperture design to promote smooth out of focus highlights, and can be used on all 4/3 cameras. It is quite sharp even wide open.