The cat posing for a fisheye

For a long time I have thought I would like a fisheye lens. This week I got the so-call "body cap lens" from Olympus, a 9mm fisheye. Like any fisheye, in the right environment and held properly, it can give a fairly rectilinear image. But in most cases it gives that fisheye-look. Very nice in brighter light, but since it has only a single aperture, f/8, it ain't the fastest lens in the bag.