Is the pentax hd d fa 21mm f 2 4 ed limited dc wr good for landscape?

Here is what the site says about that.

From Pentax HD D FA 21mm f/2.4 ED Limited DC WR: Pentax HD D FA 21mm f/2.4 ED Limited DC WR: A prime lens by Pentax for Full frame cameras, 21mm f/2.4. A compact, weather-sealed wide prime for the full-frame bodies. Specs - Maker: Pentax - Focal length: 21mm (prime) - Maximum aperture: f/2.4 - Made for: Full frame sensors - Mounts: Pentax K - Stabilised: no - Autofocus: yes What it frames like - On full frame (Pentax K): as marked, 21mm. - On APS-C (Pentax K): like 32mm on ...

From Landscape: Landscape: Landscape photography is slow. The light does the work, the scene doesn't move much, and you can use a tripod. That changes what matters in a camera.

Quoted from this site's pages.