Compare PENTAX Products Side by Side
If you compare the two, the specifications read a little different.
K30 (Wireless Flash exposure compensation: -2 to 1 EV (1/2 steps))
K50 (Sync Flash exposure compensation: -2 to +1 EV (1/3 steps))
K30 (Sensor-shift SR w rotational compensation (3 stops max))
K50 (Sensor-shift SR w rotational compensation (3 stops avg CIPA, 4 stops max))
K30 (Exposure bracketing: 3 frames, up to +/- 2 EV in 1/3 or 1/2 steps)
K50 (Exposure bracketing: 3 frames, up to +/- 3 EV in 1/3 or 1/2 steps )
K30 (File/Folder customization: Folder name (standard, date), file name (standard, customizable), embed copyright )
K50 (File/Folder customization: Folder name (standard, date), create new folder, embed copyright)
K30 (Custom Functions Functions available: 23)
K50 (Custom Functions Functions available: 22)
Playback modes and Drive Modes sections read a little different too but difficult to parse them here.