Pentax k 30 vs pentax k 50?

Here is what the site says about that.

From Pentax K-30: Pentax K-30: A DSLR by Pentax with a 16.3-megapixel APS-C sensor, announced in 2012. Specs - Maker: Pentax - Mount: Pentax K - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 16.3 megapixels - Stabilisation: in the body - Announced: 2012 - Type: DSLR Focal lengths on it Lenses frame like 1.5 times their focal length on full frame: 16mm like 24mm, 23mm like 35mm, 33mm like 50mm, 57mm like ...

From Pentax K-50: Pentax K-50: A DSLR by Pentax with a 16.3-megapixel APS-C sensor, announced in 2013. A weather-sealed entry-level body that can also run on AA batteries with an optional holder. Specs - Maker: Pentax - Mount: Pentax K - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 16.3 megapixels - Stabilisation: in the body - Announced: 2013 - Type: DSLR Focal lengths on it Lenses frame like 1.5 times their focal ...

Quoted from this site's pages.