As the thread title suggests I'm looking to buy a prime lens for my D5200. The main purpose will be photos of our baby for which I would like to be able to take well in poorish light and possibly blur unwanted backgrounds. Currently all I have is the 18-55 DX VR kit lens. I have tried taking photos at both 35mm and 50mm, and think I prefer the results at 50mm. Whatever new lens I get I want it to autofocus with my camera, take good shots of baby & mum/ family/friends and also possibly be useful for back to basics out and about photography (If I ever have time again...). It's possibly worth clarifying that my definition of good shots would be nice to very nice snaps not competition entries. Thanks in advance, and apologies if this question has been answered many many times before.