Ultra-wide fisheye lens for Olympus Four Thirds DSLR cameras.
The Olympus Zuiko Digital 8mm f/3.5 Fisheye ED is a circular fisheye lens for the Four Thirds system (not Micro Four Thirds), producing a full circular fisheye image on Four Thirds sensors. ED glass elements reduce chromatic aberration across the extreme fisheye field of view.
8mm focal length, f/3.5 maximum aperture, ED glass, circular fisheye (180-degree), Four Thirds system mount, manual focus only, designed for Olympus E-series DSLRs.
The 8mm fisheye produces a fully circular fisheye image on Four Thirds sensor cameras (E-5, E-3, E-1, etc.). It requires a Four Thirds to Micro Four Thirds adapter (MMF-3 or similar) for use on Micro Four Thirds cameras, where it becomes a full-frame fisheye effect on the MFT sensor. An optically interesting creative tool.
Confirm compatibility with your camera — this is Four Thirds mount (DSLR), not Micro Four Thirds (mirrorless). Test the fisheye rendering. Inspect elements for fungus and coating condition. Check Four Thirds mount engagement.