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40MM DIAMETER EDNALITE COPY LENS
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Item No: L3297
Price: $6.00
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| Unused surplus beauties! Front and rear clear lens diameter of 40mm, 30mm set internal aperture, multi-element (5), with nice light yellow/purple anti-reflection coated optics. Barrel length of 51mm x 50mm in diameter. Focal length is 170mm. We took one apart and found a negative achromat on each end and a positive meniscus lens in the middle. Gives nice, sharp color-corrected images even with wide field eyepieces. Also makes a nice magnifier. |
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