Photograph an old, abandoned mansion emerging from a thick fog, with only the faint outline of its towers and windows visible; use a 120mm telephoto lens to isolate the mansion and create a sense of distance, set the aperture to f/8 for a deep depth of field to keep the mansion and surrounding fog in focus, use a slow shutter speed of 1/30s with a tripod to capture the low light, set ISO to 100 to minimize noise, and adjust the white balance to enhance the cool, eerie tones of the scene, adding an air of mystery.