"field of view"

aznsx

Enlightened
CPF Supporter
Joined
Apr 24, 2015
Messages
549
Location
Phoenix, AZ USA
We always reference "field of view" @ X yards when discussing optical scopes, binoculars, etc. What is the approx. "field of view" (or size of area of useful illumination) for typical LEP lights @ 1 mile? (We could talk 'angles', but I'm not in the mood for trig)
 
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