Is the yongnuo yn85mm f 1 8 df dsm worth it?

Here is what the site says about that.

From Yongnuo YN85mm f/1.8 DF DSM: Yongnuo YN85mm f/1.8 DF DSM: A prime lens by Yongnuo for Full frame cameras, 85mm f/1.8. Specs - Maker: Yongnuo - Focal length: 85mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: Sony E, Nikon Z, Canon RF - Stabilised: no - Autofocus: yes What it frames like - On full frame (Sony E, Nikon Z, Canon RF): as marked, 85mm. - On APS-C (Sony E, Nikon Z): like 128mm ...

From Yongnuo YN50mm f/1.8 DF DSM: Yongnuo YN50mm f/1.8 DF DSM: A prime lens by Yongnuo for Full frame cameras, 50mm f/1.8.

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