Pulsar Thermion 2 XP50 Pro vs Sig Sauer ECHO SV50-LRF
The Thermion 2 XP50 Pro runs a 640×480 core at 17 µm behind a 50 mm lens; the ECHO SV50-LRF runs 640×512 at 12 µm behind 50 mm. The ECHO SV50-LRF has 1.1× the pixels. The ECHO SV50-LRF is lighter by 0.4 oz.
How far you can see a person
Make out detailTell what it isSpot itMaker’s claim
Pulsar Thermion 2 XP50 Pro640×480 · 17 µm · 50 mm
113 m make out detail184 m tell what it is735 m spot itmaker claims 1,800 m
Sig Sauer ECHO SV50-LRF640×512 · 12 µm · 50 mm
160 m make out detail260 m tell what it is1,042 m spot it
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Calculated from the sensor's pixel pitch and the lens focal length, for clear air.