Did you ever wonder why your camera takes so long to take the picture when you push the shutter button? Did you get frustrated with it and stick it in a drawer and claim it was junk?
Digital cameras are not like the film camera you may have learned on. Today's cameras are really a computer wrapped around a lens.
To make the most of your camera, try pushing the shutter button half-way down. This does a number of things. It wakes up the camera [computer], the camera then looks to see how to set itself to get the best exposure, and, here's what takes a moment or two, it sets the focus on your subject.
It's kind of like waking up in the morning and everything is a bit blurry; it takes a moment to get the world in focus.
Keep your finger half-way down on the shutter button and when you have what you want to capture, finish pushing all the way. Instant picture!