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The M49 observation telescope is a 20-power daytime telescope currently used by the US military. It is used for making ground observations of a target area and effectiveness of artillery fire. It does not have a mil-dot reticle and is usually supported by the M-15 Tripod. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「M49 telescope」の詳細全文を読む スポンサード リンク
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