books مستوي تركيز
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Source: wikipedia.org
مستوي تركيز (Info)
مستوي التركيز هو مصطلح يُستخدم في علم البصريات لتحديد درجة حدة البصر التي يتم إنتاجها من العدسات، وعادة يتم وصفها بالمدي الذي يحدث للهدف عدم وضوح أو حدة.
