Is the olympus 9mm f 8 fisheye body cap lens worth it?

Here is what the site says about that.

From Olympus 9mm f/8 Fisheye Body Cap Lens: Olympus 9mm f/8 Fisheye Body Cap Lens: A prime lens by Olympus for Micro Four Thirds cameras, 9mm f/8. A fisheye as thin as a body cap, with a fixed f/8 aperture and manual focus. Specs - Maker: Olympus - Focal length: 9mm (prime) - Maximum aperture: f/8 - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: no, manual focus What it frames like - On Micro Four Thirds ...

From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.

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