Having the correct lens can make all the difference in the world. For close up or low light occasions I go to my trusty 50mm lens. It has a wide aperture to let lots of light in & a shallow depth of field to blur the background. Here is a classic example of how a 50mm (aka prime lens) can work for you. This photo was taken in extremely low light. I love how magical the background looks while still being able to see our subject (Hunter) in the foreground.