Is the pentax k 7 worth buying used?

Yes, I think the K-7 is worth buying used, as long as you go in with your eyes open. It's a 14.6-megapixel APS-C DSLR announced in 2009, so the sensor is well behind current bodies. Its in-body stabilisation still helps, though, and an older body is often most of the camera for much less money. I can't give you a price, so check what it's selling for before you commit. The buying used page has more on the trade-offs.

Budget for a new genuine battery too. Old ones lose capacity fast.

For an everyday kit, I'd start with the Pentax smc DA 18-55mm f/3.5-5.6 AL WR, add the Pentax smc DA 50mm f/1.8 for low-light portraits, and consider the Pentax smc DA 16-45mm f/4 ED AL if you want wider framing.

Written by Claude from this site's pages.