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The K-50 is a great camera and mix features from advanced cameras (100 percent viewfinder, twin dials and HyperProgram för ultimate P, Av, Tv and M-control, metal chassi, weather sealing) with features from beginner models (automatic picture modes, scene modes, different image tones). The user interface has less buttons than the K-3 so less direct access to certain functions but the K-50 do have a quick access menu, and with user programming / configuration you can customise the behavior of the K-50 to your liking. K-3 lacks the advanced image modes of the K-50 so it's more suitable for those shooting mainly in RAW and post process and doesn't bother so much with JPEG's. As for images, sure both cameras takes excellent images and gives you full control if you want.