Amlong Crystal Premium Optical Glass Double Convex and Concave Lens Set, 50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL), 6 Piece Set
from $13.95
United Scientific Supplies LCC506 Double Concave Lens, 50 mm Diameter, 150 mm Focal Length
from $5.97
EISCO 6pc Optical Lens Set, 2" (50mm) Diameter - 3 Double Convex Lens & 3 Double Concave Lens - 200mm, 300mm, 500mm Focal Lengths - Optically True Glass - Ground, Beveled Edges
from $15.49
PATIKIL 0.4" (10mm) Focal Length Double Convex and Concave Lens Set, Glass Optically Polished Round Edges Lens for Physics Experiment Classroom, Clear
from $7.99
Physics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education
from $19.99
EISCO Optical Glass Lens, 3" (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base
from $11.89
6 PCS Physical Optical Acrylic Convex Concave Lens Set, Triangular Semicircular Rectangular Prism Physics Demonstration Tools Equipment for Physics Teaching Students Lab Photography Science
from $9.96
PATIKIL 4" (100mm) Focal Length Double Concave Lens, 40mm Diameter 6mm Height Glass Optically Polished Round Edges Lens for Physics Experiment, Clear
from $7.59
United Scientific LSTA38 Acrylic Demonstration Lens Set, 6 Pieces, 38mm Diameter
from $13.58
EISCO Double Concave Lens, 50mm Focal Length, 2" (50mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
from $11.99
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