I'm still a beginner, but I am learning a lot, especially from trial and error. Last night as the sun was going down my wife and I were taking pictures, she was using her flash and I was using my 50 1.8. Even though it is a fast lens IMO there is no substitute for a flash when taking pictures of things likes children, horses, cats outside in the setting sun, unless your goal is to get the landscape. Her pictures were way better then mine, that and at 1.8 I couldn't focus the entire shot at all DOF I know. I'd have been better with a flash shooting at F8 at least. I see a lot of people recommending the 50mm 1.8/1.4 even to people as a next purchase. In my opinion and experience, and you can correct me if I'm wrong, just explain my error of thought, a good tripod and flash should come before a 50mm 1.8/1.4 unless you are looking for a first lens. The kit lens and a flash will yield much better results in low light then a 50mm at 1.8 for people shots. Again I welcome any explanation of error in my thought process so I can see the light, pardon the pun. Just don't flame me, I'm only trying to learn and become the best photographer I am capable of becomeing. OH I do love my 50mm don't get me wrong, in the house it's awesome in low light when you don't want to flash, but I just don't like it outside in the failing light.