العدسة الزجاجية البصرية المزدوجة المقعرة من Eisco - 2 "(50 مم) - طول بؤري 250 مم - 3 مم تقريبًا.
مميزات خاصة
- This round double concave optical glass lens is designed for physics and educational uses.
- It is approximately 2" (50mm) diameter and 3mm thick. Note, thickness varies as they are not designed to be consistent in that respect.
- Because of their educational use design, there may be minor imperfections that do not affect physical function.
- 250mm Focal Length
وصف
Round double concave optical glass lens designed for physics and educational uses.
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