35mm Camera — Preferred by some ghost hunters over digital cameras for such reasons as enlargement quality, less ease of image doctoring, and tendency of digital flash imagery to exaggerate light-dispersion and create false images from airborne particles, water vapor, etc.

 

Digital Audio Recorder — Not prone to the "noise and hiss" of analog tape, nor to the compression needed for Mini Disc, which removes those parts of an audio signal above and below the range of human hearing. Spirits are said to be generally audible below this level, at 50dB or less.

 

Digital Infrared Camera — Used to capture images invisible to the human eye. Feeds to a computer where the infrared images are stored on a hard drive.

 

Digital Video Camera — Offers better quality than videotape camcorders, which are more limited in bandwidth.

 

Digital Thermometer — Witnesses often report "cold spots" and "hot spots" during an apparent paranormal event. Some digital thermometers record temperatures second-by-second for PC storage and graphical charting.

 

 

Electromagnetic Field Recorder — Controversial among ghost hunters: EMFs from power lines, TVs, etc., surround us constantly, and it is undetermined that ghosts emit EM energy. Some researchers say ghosts do disrupt EMFs, however.

 

Night-Vision Goggles — Magnifies available light by 10,000 to 15,000 times. Cannot be used in total darkness.

 

Thermal-Imaging Digital Camera — Records images of long-wavelength infrared radiation (i.e. heat), which is invisible to the human eye. This allows the capture of images in even total darkness, or through smoke or fog.