A component of a telescopic sight, located between the reticle and the eyepiece lens, which consists of two lenses which cause a transmitted image to invert and reverse, thus producing a vertically-oriented final image.
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A component of a telescopic sight, located between the reticle and the eyepiece lens, which consists of two lenses which cause a transmitted image to invert and reverse, thus producing a vertically-oriented final image.
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