Is the zeiss batis 40mm f 2 cf worth buying used?

Here is what the site says about that.

From Zeiss Batis 40mm f/2 CF: Zeiss Batis 40mm f/2 CF: A prime lens by Zeiss for Full frame cameras, 40mm f/2. Specs - Maker: Zeiss - Focal length: 40mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 40mm. - On APS-C (Sony E): like 60mm on full frame; f/2 gives about the depth of field ...

From Buying used: Buying used: Cameras and lenses are built to last, and many photographers upgrade often. That makes the used market one of the best ways to afford good gear. A body that's one or two generations old is often most of the camera for a fraction of the price.

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