Neutralizing Glass Lens Set

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7-909-20
470111-276KT 6.25 USD
470111-276
Neutralizing Glass Lens Set
Fascinating!

  • Set of two
Two 38mm spherical lenses, a double-convex and a double-concave lens fit each other perfectly. Their focal lengths at 155mm are identical. Together one neutralizes the other, giving a net focal length of zero.



   
 

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