Sightmark Shade Thermal 2-16x15 vs Sightmark Shade Thermal 3.5-28x30
The Shade Thermal 2-16x15 runs a 256×192 core at 12 µm behind a 15 mm lens; the Shade Thermal 3.5-28x30 runs 256×192 at 12 µm behind 30 mm. The Shade Thermal 2-16x15 is lighter by 1.9 oz. Approximate prices are ~$800 and ~$1,000.
How far you can see a person
Make out detailTell what it isSpot itMaker’s claim
Sightmark Shade Thermal 2-16x15256×192 · 12 µm · 15 mm
48 m make out detail78 m tell what it is313 m spot it
Sightmark Shade Thermal 3.5-28x30256×192 · 12 µm · 30 mm
96 m make out detail156 m tell what it is625 m spot it
501002005001k2k5k m
Calculated from the sensor's pixel pitch and the lens focal length, for clear air.