Well, you might have figured out that low-key photography is pretty much the opposite of high-key photography. Instead of bright and cheerful, it’s dark and moody.
One way to think about low-key photography is that it’s about trying to capture darkness in your shot to tell your story. But to capture darkness effectively, you’ll also need a bit of light.
To take a low-key shot, the best thing to remember is to experiment… play with the direction and angle of your light source. Try different shutter speeds and aperture settings. Remember if the shutter speed is low then you’ll need a tripod to get the best from your camera. Keep your ISO low to avoid noise as this can end up being a bit distracting. Underexpose your shot as much as you can without losing detail.