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3309_38-300MLenses Spherical, Unmounted, Bi-Concave 38 mm Diameter Fl 300 mm$23309_50-300MLenses Spherical, Unmounted, Bi-Concave 50 Mm Diameter Fl 300 Mm$23309_50-500MLenses Spherical, Unmounted, Bi-Concave 50 mm Diameter Fl 500 mm$23309_50-50MMMade Of Polished Glass With Ground Edges. Bi-Concave Lens: Used For Reducing The Size Or Spreading Out Light, With Two Inward Curving Symmetrical Faces. &Nbsp;200 Mm Focal Length. &Nbsp;
- 200 mm focal length
- 3309
- 3309 75
- 3309-75
- 330975
- 3309_75
- bi-concave lens
- biconcave lens
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- concave lens
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- spherical biconcave
- spherical biconcave lenses
- spherical biconcave lenses 75
- spherical biconcave lenses 75 mm
- spherical lens
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- symmetrical faces
- unmounted lenses
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Lenses Spherical, Unmounted, Bi-Concave 38 mm Diameter Fl 1000 mm
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Bi-Concave 38 mm Diameter Fl 100 mm
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Lenses Spherical, Unmounted, Bi-Concave 38 mm Diameter Fl 200 mm
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Lenses Spherical, Unmounted, Bi-Concave 38 mm Diameter Fl 300 mm
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Lenses Spherical, Unmounted, Bi-Concave 38 mm Diameter Fl 500 mm
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Lenses Spherical, Unmounted, Bi-Concave 38 mm Diameter Fl 50 mm
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Lenses Spherical, Unmounted, Bi-Concave 50 mm Diameter Fl 1000 mm
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Lenses Spherical, Unmounted, Bi-Concave 50 mm Diameter Fl 150 mm
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Lenses Spherical, Unmounted, Bi-Concave 50 mm Diameter Fl 200 mm