The Complete Photo Manual: Skills + Tips for Making Great Pictures
from $12.99
United Scientific Supplies LCV520 Double Convex Lens, 50 mm Diameter, 500 mm Focal Length
from $2.46
EISCO Double Convex Lens, 1000mm Focal Length, 3" (75mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
from $10.99
EISCO Concave Mirror, 5.9" Dia., 300mm Focal Length
from $22.99
EISCO Double Convex Lens, 50mm Focal Length, 1.5" (38mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
from $11.49
Blisstime 2 Pairs of Bi-Convex Biconvex Lens Set 25mm Diameter 45mm Focal Length for Google Cardboard
from $6.99
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
Donegan DA-10 OptiVisor Headband Magnifier, 3.5x Magnification, 4" Focal Length
from $56.00
EISCO Double Concave Lens, 100mm Focal Length, 1.5" (38mm) Diameter - Spherical, Optically Worked Glass Lens - Ground Edges, Polished - Great for Physics Classrooms
from $9.99
Biconvex Lens Set, Pop-Tech Optical Glass Lens Bi-Convex 34mm Diameter 45mm Focal Length Lenses for Google Cardboard VR
from $7.99
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