Why thermal is the better night vision
The ThermoSight® R-Series is the ideal scope for hunting at night because it detects heat energy, instead of light. The body heat of target animals glows bright through the R-Series scope—while you remain hidden in the dark. Conventional image intensified (I2) night vision scopes are more limited because they require illumination from moonlight or other sources. Plus, they can't reveal what's hiding in shadows or in low-contrast environments the way thermal can.