Is the zeiss loxia 50mm f 2 worth buying used?

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From Zeiss Loxia 50mm f/2: Zeiss Loxia 50mm f/2: A prime lens by Zeiss for Full frame cameras, 50mm f/2. Specs - Maker: Zeiss - Focal length: 50mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E): as marked, 50mm. - On APS-C (Sony E): like 75mm on full frame; f/2 gives about the depth ...

From Zeiss Loxia 35mm f/2: Zeiss Loxia 35mm f/2: A prime lens by Zeiss for Full frame cameras, 35mm f/2.

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