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ACHROMATIC OBJECTIVE LENS SET 52MM DIA X 600MM FL CTD

$8.00 USD
Product Code: L14810
Availability: In Stock

Crown and flint when put together produces a coated achromatic objective lens 52mm diameter with a focal length of 600mm  Great for making an inexpensive but quality scope.  Place the crown (double convex) with its strongest curve against the negative side of the flint.  Use a couple pieces of masking tape on the edges to hold them together.  The crown side faces the sky or the object you plan to look at.  Unused.

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