Is the panasonic leica dg 15mm f 1 7 worth buying used?

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From Panasonic Leica DG 15mm f/1.7: Panasonic Leica DG 15mm f/1.7: A prime lens by Panasonic for Micro Four Thirds cameras, 15mm f/1.7. Specs - Maker: Panasonic - Focal length: 15mm (prime) - Maximum aperture: f/1.7 - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: yes What it frames like - On Micro Four Thirds (Micro Four Thirds): like 30mm on full frame; f/1.7 gives about the depth of field of f/3.4 there. ...

From Panasonic Leica DG 9mm f/1.7: Panasonic Leica DG 9mm f/1.7: A prime lens by Panasonic for Micro Four Thirds cameras, 9mm f/1.7.

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