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: Measures the sensor's ability to detect tiny temperature differences. A lower number is better; high-end optics like those from Pulsar often feature sub-25mK or even sub-18mK ratings for better detail in fog or rain.

: A higher base magnification (e.g., 4x) helps for long-range shots but narrows your field of view (FOV). Lower base magnification (e.g., 1x–2x) is better for quick scanning and short-range tracking. Top Rated Models by Category (2025-2026) buy thermal vision

How to choose thermal riflescope for hunting - Pulsar Vision : Measures the sensor's ability to detect tiny