Best wide angle lens for the pentax k s2?

For most people, I'd start with the **Pentax HD DA* 11-18mm f/2.8 ED DC AW**. On the K-S2 it frames like 16-27mm on full frame, it stays bright at f/2.8 across the whole range, and the AW name means it's weather-resistant, which suits a body that's already sealed.

If you want something smaller and simpler, the Pentax HD DA 15mm f/4 ED AL Limited is a compact prime that frames like 22mm. It's a nice everyday walk-around wide, though you'll have to move your feet instead of zooming.

For a cheaper ultra-wide, the Tamron SP AF 10-24mm f/3.5-4.5 Di II LD Aspherical (IF) goes very wide, to about 15-36mm equivalent. It's slower, so it's better in daylight than in dim rooms.

If you're new to wide angles, the focal length converter helps you check what each lens will actually see.

Written by Claude from this site's pages.