What is aperture? Aperture is the amount of light being admitted through the lens as you capture your subject. How can you tell how much light that is? In the example image, the aperture, also known as the f-stop, is the number 4.5 (F4.5). Adjusting the aperture allows you to get creative. Think of a crisp, focused image (foreground and background), compared to a focused foreground subject but...

What does shutter speed control? Shutter speed controls the amount of time your camera takes to capture your subject, or in other words, to take the picture.  How can you tell how long that is? In the example image, my shutter speed is revealed by the number 90. Ninety by itself may not appear to give you enough information; instead, consider it a fraction. Therefore, the shutter speed is actually...