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ACHROMAT 31.4MM DIA X 250MM FL, NOT CEMENTED
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Item No: L10389
Price: $7.00
or 10 for $56.00
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| This is an achromat that is 31.4mm in diameter by 250mm focal length, not cemented. It comprises of a double convex lens that has a focal length of 115mm and a negative meniscus with a focal length of -235mm. Together the edge thickness is about 6.5mm and the center thickness is 7.5mm. |
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