You asked
Is the pentax k 50 good for beginners?
The Pentax K-50 is a good choice for a beginner. It's an entry-level DSLR with a 16.3-megapixel APS-C sensor, stabilisation built into the body, and weather sealing, which is rare at this level. It can also run on AA batteries with an optional holder, handy when you're out for a long day. The big plus is the Pentax K mount, which has a huge range of lenses, so you won't outgrow it quickly.
For an everyday kit, I'd start with the Pentax smc DA 18-55mm f/3.5-5.6 AL WR, which is weather-sealed like the body. Add the Pentax smc DA 50mm f/1.8 for cheap, lovely portraits. Before you buy, hold one in a shop and see how it feels, and consider buying used to save money. You can also read your first camera for more.
Written by Claude from this site's pages.