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    What People Are Saying

    Great for Apologia Astronomy
  • Deb
  • 11/03/2014
  • I bought these based on the recommended items needed for Apologia Astronomy. We used this lens along with the 300mm f/l (OP-LEN4X30). Both were needed and both were excellent!
    Perfect for demonstration
  • Dan
  • 05/20/2010
  • Works exactly as a convex lens should work. Useful for demonstrating the Gaussian thin lens equation, real and virtual images, and magnification.

    reward points

    Lens, double convex, 50mm f/l

    Ages 11+

    Item# OP-LEN4X05

    $2.10 in_stock

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    Product Overview
    All our lenses and circular mirrors are 38 mm in diameter. The focal length (f/l) is noted for each.

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    • Product Details

      Lens, double convex, 50mm f/l

      All our lenses and circular mirrors are 38 mm in diameter. The focal length (f/l) is noted for each. These lenses are 8.56 mm thick.

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