Selling my Olympus 12mm lens.  Reason for selling is because I upgraded my drone camera.  This is a great lens for the DJI Inspire drones or micro four thirds dslr cameras.  Used lens.  It works great and functions great but does have a heat spot on the outer edge of the lens.  See pics for heat spot.  This heat spot does not effect the image or function of the lens.  I purchased this lens with the heat spot and have used this same lens for national commercials and ad agency work.  This is the 'go to' lens for real estate work and other wide angel shots.