There is nothing new about the discovery that buried metals give off an aura that can be captured by certain cameras. Louis J Matacia has been promoting a Polaroid camera for years as a major tool for finding treasure, which was great, The author found treasure himself using just such a tool. The problem now is that the camera is obsolete, although still readily available on the previously enjoyed market and competition from digital cameras forced Polaroid to stop making the film in 2005. The last original film pack the author bought was two years out of date and cost $60.
With the prospects of obtaining Polaroid film apparently worsening the author set about trying to find a solution and came up with two! The first is that there is a suitable Polaroid film readily available.
The second solution that the author describes in great detail is - wait for it - YOU CAN CAPTURE TREASURE AURAS WITH DIGITAL CAMERAS! Not collector's items like the Polaroid, mind you, but recent models that you can buy anywhere tomorrow.
And the digital camera works brilliantly. Auras can be obtained on gold down to a quarter of an ounce or less - that's a single coin or nugget! The camera can even discriminate between different metals- all from a distance and can be used anytime during daylight hours.
By definition, instruments that can reveal hidden treasure from a distance are long-range locators. But the author does not discuss expensive commercial long-range