Is the voigtl nder nokton 21mm f 1 4 aspherical sharp wide open?

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From Voigtländer Nokton 21mm f/1.4 Aspherical: Voigtländer Nokton 21mm f/1.4 Aspherical: A prime lens by Voigtländer for Full frame cameras, 21mm f/1.4. Specs - Maker: Voigtländer - Focal length: 21mm (prime) - Maximum aperture: f/1.4 - Made for: Full frame sensors - Mounts: Sony E, Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Leica M): as marked, 21mm. - On APS-C (Sony E): like 32mm on full frame; f/1.4 ...

From Voigtländer Nokton Classic 35mm f/1.4: Voigtländer Nokton Classic 35mm f/1.4: A prime lens by Voigtländer for Full frame cameras, 35mm f/1.4. A compact fast 35mm with a soft, classic look wide open.

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