Best first lens for pentax k?

The site doesn't have a list of individual K-mount lenses yet, so I can't name a specific first lens for you. What I can say is that the Pentax K mount has been around since 1975, so decades of lenses still fit current bodies, and older manual K lenses fit too. That gives you plenty of choice.

For a first lens, my advice is the same as on the first camera page: a cheap, fast prime, around 50mm f/1.8 or its APS-C equivalent. It's great for people and low light, and it will teach you more than a kit zoom. Spend roughly as much on lenses as on the body. You can browse lenses for what's on the site.

Written by Claude from this site's pages.