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UNUSUAL MOUNTED LENS/PRISM MIRROR ASSY 160MM FL
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Item No: L3050
Price: $15.00
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| Unused beauty in original box. Barrel diameter is 55mm x 41mm long. If you take it apart, here's what you get: Mounted right Angle prism with sides aluminized (hypotenuse is 27mm. Coated front lens negative achromat doublet (-2000mm fl), 47mm clear diameter, and a coated positive meniscus lens, 30mm clear diameter, mounted, 167mm focal length. Assembly has a focal length of 160mm. Here's the interesting part: It operates like a dove prism. If you turn it 180 degrees, the image rotates 360 degrees. |
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