| 63-685 30mm Dia. x 60mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-210 4.5mm Dia. x 9mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-609 9mm Dia. x 13.5mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-621 10mm Dia. x 100mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-623 12mm Dia. x 18mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-626 12mm Dia. x 36mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-629 15mm Dia. x 15mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF11 | Circular |
| 67-643 20mm Dia. x 40mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-655 25mm Dia. x 150mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-656 25mm Dia. x 175mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-662 30mm Dia. x 75mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-124 5mm Dia. x 5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 89-125 5mm Dia. x 10mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-131 6mm Dia. x 12mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-136 9mm Dia. x 9mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 89-139 9mm Dia. x 27mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-146 10mm Dia. x 30mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-150 12mm Dia. x 12mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 89-160 15mm Dia. x 25mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-164 15mm Dia. x 60mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-169 20mm Dia. x 25mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF11 | Circular |
| 89-177 25mm Dia. x 35mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-180 25mm Dia. x 75mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-188 30mm Dia. x 50mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-189 30mm Dia x 60mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 49-447 3mm Dia. x 3mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 63-659 5mm Dia. x 10mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 63-661 5mm Dia. x 20mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-863 6mm Dia. x 24mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-867 9mm Dia. x 13.5mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 63-668 10mm Dia. x 40mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-875 12mm Dia. x 30mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-906 50mm Dia. x 100mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-615 10mm Dia. x 15mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-619 10mm Dia. x 40mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-622 12mm Dia. x 12mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 67-625 12mm Dia. x 30mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-634 15mm Dia. x 45mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-637 18mm Dia. x 18mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF11 | Circular |
| 67-642 20mm Dia. x 30mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-649 25mm Dia. x 35mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-654 25mm Dia. x 125mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-666 40mm Dia. x 40mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF11 | Circular |
| 89-118 3mm Dia. x 3mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 89-122 4.5mm Dia. x 4.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-LASF44 | Circular |
| 89-129 6mm Dia. x 6mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF5 | Circular |
| 89-138 9mm Dia. x 18mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-141 9mm Dia. x 45mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-149 10mm Dia. x 100mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-151 12mm Dia. x 18mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-153 12mm Dia. x 30mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-157 15mm Dia. x 15mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-SF11 | Circular |
| 89-163 15mm Dia. x 50mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-167 18mm Dia. x 36mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 89-192 30mm Dia. x 120mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Convex-Convex) | Edmund Optics | N-BK7 | Circular |
| 38-487-INK 9.0mm Dia. x 20mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 38-488 9.0mm Dia. x 25mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 63-519 10.0mm Dia. x 10.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-SF11 | Circular |
| 63-523-INK 10.0mm Dia. x 30.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-481 12.0mm Dia. x 15.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 49-917 12.0mm Dia. x 20.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-486 12.0mm Dia. x 48.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-487 12.0mm Dia. x 54.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-489 12.0mm Dia. x 84.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-489-INK 12.0mm Dia. x 84.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 62-592 12.7mm Dia. x 15.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 62-593 12.7mm Dia. x 19.1mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 88-750-INK 30.0mm Dia. x 75.0mm FL; VIS-EXT; Inked; Plano-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 88-764 50.0mm Dia. x 150.0mm FL; VIS-EXT Coated Plano-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 65-294 1.5mm Dia. x 1.5mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-LASF9 | Circular |
| 65-301 2.5mm Dia. x 2.5mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-LASF9 | Circular |
| 49-176 3.0mm Dia. x 6.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 47-858 5.0mm Dia. x 10.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 47-859 5.0mm Dia. x 12.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 47-859-INK 5.0mm Dia. x 12.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-467 6.0mm Dia. x 12.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-467-INK 6.0mm Dia. x 12.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-468 6.0mm Dia. x 15.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-470 6.0mm Dia. x 21.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-472 6.0mm Dia. x 30.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-696 6.0mm Dia. x 72.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 49-916 9.0mm Dia. x 15.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-479-INK 9.0mm Dia. x 36.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-180-INK 9.0mm Dia. x 72.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 67-181-INK 9.0mm Dia. x 90.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 63-520 10.0mm Dia. x 15.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-SF11 | Circular |
| 63-525-INK 10.0mm Dia. x 50.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-483-INK 12.0mm Dia. x 24.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 33-355 12.0mm Dia. x 36.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-485 12.0mm Dia. x 42.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-487-INK 12.0mm Dia. x 54.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-488-INK 12.0mm Dia. x 60.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 38-501 12.5mm Dia. x 17.5mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 38-515-INK 12.7mm Dia. x 20.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 62-594 12.7mm Dia. x 25.4mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 62-594-INK 12.7mm Dia. x 25.4mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 38-516-INK 12.7mm Dia. x 30.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |
| 45-491-INK 15.0mm Dia. x 15.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-SF5 | Circular |
| 45-492-INK 15.0mm Dia. x 22.5mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-SF5 | Circular |
| 88-742 25.4mm Dia. x 76.2mm FL; VIS-EXT Coated Plano-Convex Lens VIS-EXT 350-700nm | Optics | Lens | Spherical Lens (Plano-Convex) | Edmund Optics | N-BK7 | Circular |