As already noted, in the vast majority of images it does not matter, but in places, where there may be of a huge residual heat (several hundreds kilowatt hours), accumulated underground, and thus there maybe from time to time a small outburst of warm gases (absolutely invisible by eyes), then camera or camcorder able to record various "ghosts ", invisible to the naked eye.
Kama tayari alibainisha, katika idadi kubwa ya picha haijalishi, lakini katika maeneo, ambapo kuna inaweza kuwa ya joto kubwa mabaki (kilowatt mamia kadhaa masaa), kusanyiko chini ya ardhi, HIVI huko na labda mara kwa mara outburst ndogo ya joto gesi (kabisa asiyeonekana kwa macho), kisha uweza kamera au camcorder kurekodi "vizuka" mbalimbali, isiyoonekana kwa macho.