Panning - If you are forced to shoot action at a low shutter speed, choose one moving object, and move the camera with the object. When done properly, this will “freeze” the main object while everything else is blurred, leading to an interesting sense of movement.
Halo effect – If the shutter is open a long time, any light source in the frame will appear to glow or radiate. Properly positioning these lights can actually add to the interest of the photo, or it can destroy it.
Selective focus - A shallow depth of field means that only a very small area in front of the lens will be in focus. As long as you focus is on the right thing, this can actually be an advantage as it greatly simplifies the image.
Low light often leads to the need for a high ISO (fast film or digital pickup setting). A high ISO setting means the digital capture chip registers light and creates an image faster than a low ISO. This leads to: