DSLRs are more and more affordable and most people with an interest in photography can pick one up without having to break the bank. However much you spend on your camera though has no real baring on your ability to take great photos. In fact, the one thing you can do to take better photos with your lovely new DSLR is get rid of the kit lens that came with the camera. And never use it again.
So why should you replace your kit lens with a 50mm lens?
As a Canon girl, one of the first lenses I owned was a 50mm f1.8. I shot with this for a long time before I was able to afford any of the big boy lenses. You can pick up a 50mm f1.8 for around £80. Don't be fooled by the lightweight, plastic feel to it, this is a great lens capable of producing wonderfully sharp images and beautiful colours. Plastic fantastic.
2) It has a wide aperture.This just means that your lens is able to let more light in. The lower the "f" number of your lens, the more light can reach your camera sensor. The lower the number, the "faster" your lens is considered to be. The average kit lens will open up to around f3.5 so the chances of you successfully shooting indoors are pretty slim unless you use a flash. Without a flash, a kit lens would typically be "slow" and cause you to take blurred photos. The 50mm f1.8 is a great at handling low-light situations without a flash. If you were able to spend a bit (or a lot) more on your 50mm lens you might even want to opt for the 50mm f1.4 or even the 50mm f1.2.
The 50mm lens is generally regarded as producing the closest field of view as the human eye. This is why it is often called a "standard" or "normal lens". Provided you are shooting with a full frame sensor, it matches the perspective seen by the human eye without any distortion. It's classic old school focal length. Leica calls it “the natural image angle.” and it's excellent for creating natural looking images, especially when shooting portraits.
Almost any situation that you could think can be shot with a 50mm lens.
5) It makes you a better photographer.
If you like the idea of shooting everything without ever having to move from the comfort of your armchair, the 50mm probably isn't the lens for you.
If you are already the proud owner of a 50mm lens, what do you use it for? Let me know in the comments below.