#PD-PRO

There is a common trope in the night vision world: 1 < 2 < 4. These numbers refer to the quantity of tubes used in different sets of NODs (Night-vision Optical Devices). Monoculars like the PVS-14 or Photonis Vyper-14 are inherently more limited than binocular devices like DTNVGs, and “ panoramic” quad-tube NODs like GPNVGs are heralded by many as the holy grail of seeing in the dark – hence, one tube isn’t as good as two tubes, which aren’t as good as four. Although in practicality, the four vs. two debate is a bit more complex than this somewhat trite representation, with factors like weight entering the mix, the fact remains that quads are a big deal (and come with the big price tag to match). Doubtlessly, there is something to be said for panos’ offering of a wider field of view and resultant better situational awareness.