How far you can see a person

160 m make out detail260 m tell what it is1,042 m spot it┆ maker’s claim

501002005001k2k5k m

Calculated from the sensor's pixel pitch and the lens focal length, for clear air.

ATN quotes 3,650 m, 3.5× our figure, because makers usually measure against a person’s full height rather than their width. Why the numbers differ

ATNRiflescope · 640-class · Laser rangefinder

ATN ThOR 6 LRF 640 3-24x

Price and availability on ATN’s site may differ.

Best for

Night shooting where ranging matters — hogs and coyotes past 150 yards

01Specifications

As published by ATN. Sources: atncorp.com (product page + compare API, sku TIWST6650LRF; current price, list $4,945).

From the published specs, not owner reports.

For it

640×512 sensor, 3× the detail of an entry-level 384
Sensitive sensor that picks out small heat differences on humid or rainy nights (the best of 285 that publish it)
Built-in laser rangefinder that feeds the ballistic calculator
Swappable battery pack, so a spare doubles the run time
9 h of battery, 81st-longest of 344 here
Waterproof (IP67), survives a dunking
Records video and connects to a phone app

Against it