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optic ranging
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<blockquote data-quote="sscoyote" data-source="post: 655808" data-attributes="member: 1133"><p>Yeah, that's it.</p><p></p><p>Awhile back some guy was wondering how a circle dot reticle could be used for rangefinding a target that was really too small for the unit of subtension of the reticle [from center dot to edge of circle--1/2 the circle's diameter actually]. The problem was that the target was too small for that subtension. Somehow i figured out how to use the target as the subtension and the reticle as the tgt. But i can't remember how i did it--i'll have to look at the math some to see how i stumbled onto the solution.</p></blockquote><p></p>
[QUOTE="sscoyote, post: 655808, member: 1133"] Yeah, that's it. Awhile back some guy was wondering how a circle dot reticle could be used for rangefinding a target that was really too small for the unit of subtension of the reticle [from center dot to edge of circle--1/2 the circle's diameter actually]. The problem was that the target was too small for that subtension. Somehow i figured out how to use the target as the subtension and the reticle as the tgt. But i can't remember how i did it--i'll have to look at the math some to see how i stumbled onto the solution. [/QUOTE]
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