What is the pentax hd d fa 70 200mm f 2 8 ed dc aw good for?

Here is what the site says about that.

From Pentax HD D FA* 70-200mm f/2.8 ED DC AW: Pentax HD D FA* 70-200mm f/2.8 ED DC AW: A zoom lens by Pentax for Full frame cameras, 70-200mm f/2.8. Specs - Maker: Pentax - Focal length: 70-200mm (zoom) - Maximum aperture: f/2.8 - Made for: Full frame sensors - Mounts: Pentax K - Stabilised: no - Autofocus: yes What it frames like - On full frame (Pentax K): as marked, 70-200mm. - On APS-C (Pentax K): like 105-300mm on full frame; f/2.8 gives about the depth of field ...

From Landscape: Lenses: - A wide zoom, around 16-35mm on full frame or 10-24mm on APS-C, is the classic landscape lens: big skies, strong foregrounds. - A standard zoom, 24-70mm or similar, covers most scenes. - A telephoto zoom, 70-200mm or longer, is underrated: it picks out layers of hills, a lone tree, or light on a distant ridge. You don't need fast apertures for landscapes, since you'll usually shoot between f/8 and ...

Quoted from this site's pages.