Is the panasonic lumix s 35mm f 1 8 sharp wide open?

Here is what the site says about that.

From Panasonic Lumix S 35mm f/1.8: Panasonic Lumix S 35mm f/1.8: A prime lens by Panasonic for Full frame cameras, 35mm f/1.8. Specs - Maker: Panasonic - Focal length: 35mm (prime) - Maximum aperture: f/1.8 - Made for: Full frame sensors - Mounts: L-Mount - Stabilised: no - Autofocus: yes What it frames like - On full frame (L-Mount): as marked, 35mm. - On APS-C (L-Mount): like 52mm on full frame; f/1.8 gives about the depth of field of f/2.7 there. ...

From Leica Summilux-M 35mm f/1.4: Leica Summilux-M 35mm f/1.4: A prime lens by Leica for Full frame cameras, 35mm f/1.4. A remake of Leica's 1960s design, soft and glowing wide open.

Quoted from this site's pages.