Even if you can do many things nowadays in the post processing, you really can`t do anything to make it look perfect if the photo is out of focus or has a lot of noise.
And nothing is more annoying when looking at the camera screen and thinking "Wow this looks awesome!", only to get home to the bigger screen and realize that it is just a blurry mess. Hopefully you will be able to avoid that after reading this article.
In photography there are three things you need good knowledge of when it comes to camera settings, and those are aperture, shutter speed and ISO.
The exposure triangle
The aperture measures how much light will enter the camera by opening or closing the iris of the camera.
A wide aperture is set with lower F stop and will let more light in, while a higher F stop means na