| 63-719 10 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=25mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 63-720-INK 10 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-321-INK 12.5 mm Dia. N-BAF10/N-SF5 Achromatic Doublet; EFL=14mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF5 | Circular |
| 49-952 12.5 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=17.5mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF57 | Circular |
| 49-322-INK 12.5 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | S-BAH11, N-SF10 | Circular |
| 49-325 12.5 mm Dia. N-SK11/N-SF5 Achromatic Doublet; EFL=35mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SK11, N-SF5 | Circular |
| 49-325-INK 12.5 mm Dia. N-SK11/N-SF5 Achromatic Doublet; EFL=35mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SK11, N-SF5 | Circular |
| 49-326 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=40mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-327 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=45mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-327-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=45mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-328-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-329-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-330 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-330-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-331 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=80mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-331-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=80mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-332 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=90mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-784 12.7 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=15mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF57 | Circular |
| 49-786 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=25.4mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-787-INK 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=31.75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-788-INK 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=38.1mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-790-INK 12.7 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAK1, N-SF15 | Circular |
| 83-417 12.7 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 83-417-INK 12.7 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-335 15 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-335-INK 15 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-336 15 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=40mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-336-INK 15 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=40mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-337-INK 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-954 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-338 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-338-INK 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-955 18 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=22.5mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF57 | Circular |
| 49-955-INK 18 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=22.5mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF57 | Circular |
| 49-339-INK 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=27mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-340-INK 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-344 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-344-INK 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-345 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-346 18 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=80mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-347-INK 18 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-348 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | S-BAH11, N-SF10 | Circular |
| 49-349 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=35mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | S-BAH11, N-SF10 | Circular |
| 49-350-INK 20 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=40mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-957 20 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-351-INK 20 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-352 25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-355-INK 25 mm Dia. N-SK11/N-SF5 Achromatic Doublet; EFL=45mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SK11, N-SF5 | Circular |
| 49-356 25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-356-INK 25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF10 | Circular |
| 49-357-INK 25 mm Dia. N-SSK8/N-SF10 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF10 | Circular |
| 49-358-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-359-INK 25 mm Dia. N-SK11/N-SF5 Achromatic Doublet; EFL=85mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SK11, N-SF5 | Circular |
| 49-360-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=100mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-361 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-362 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=150mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-362-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=150mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 67-334 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=160mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 67-334-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=160mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-365 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=225mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-365-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=225mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-366 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-366-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-367 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=275mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-369-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=400mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-370-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 67-335 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=750mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 67-335-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=750mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BK7, N-SF5 | Circular |
| 49-791-INK 25.4 mm Dia. N-BAF10/N-SF6 Achromatic Doublet; EFL=38.1mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAF10, N-SF6 | Circular |
| 49-792 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-792-INK 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-793 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=63.5mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-794 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=76.2mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-794-INK 25.4 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=76.2mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-SSK8, N-SF56 | Circular |
| 49-795 25.4 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=88.9mm VIS-NIR 400-1000nm | Optics | Lens | Multiplets | Edmund Optics | N-BAK1, N-SF8 | Circular |
| ASL10142M 1 in Dia. UVFS High-Precision; CNC Polished Aspheric Lenses; NA=0.143; EFL=79 mm Uncoated | Optics | Lens | Aspheric Lens | Thorlabs | UVFS | Circular |
| ASL10142M-A 1 in Dia. UVFS High-Precision; CNC Polished Aspheric Lenses; NA=0.143; EFL=79 mm AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | UVFS | Circular |
| ASL10142-B 1 in Dia. UVFS High-Precision; CNC Polished Aspheric Lenses; NA=0.143; EFL=79 mm AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | UVFS | Circular |
| ASL10142-C 1 in Dia. UVFS High-Precision; CNC Polished Aspheric Lenses; NA=0.143; EFL=79 mm AR 1050-1700nm | Optics | Lens | Aspheric Lens | Thorlabs | UVFS | Circular |
| AL108 10 mm Dia. S-LAH643 High-Precision; CNC Polished Aspheric Lenses; EFL=8 mm; NA=0.55 Uncoated | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL1210 12.5 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=10 mm; NA=0.55 Uncoated | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL2550 25 mm Dia. N-BK7 High-Precision; CNC Polished Aspheric Lenses; EFL=50 mm; NA=0.23 Uncoated | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL4532 45 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=32 mm; NA=0.61 Uncoated | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL75150 75 mm Dia. N-BK7 High-Precision; CNC Polished Aspheric Lenses; EFL=150 mm; NA=0.23 Uncoated | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL1225-A 12.5 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=25 mm; NA=0.23 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL1815-A 18 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=15 mm; NA=0.53 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL2550-A 25 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=50 mm; NA=0.23 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL3026-A 30 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=26 mm; NA=0.52 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL4532-A 45 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=32 mm; NA=0.61 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL7560-A 75 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=60 mm; NA=0.62 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL75150-A 75 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=150 mm; NA=0.23 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL100100-A 100 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=100 mm; NA=0.48 AR 350-700nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL108-B 10 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=8 mm; NA=0.55 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL1210-B 12.5 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=10 mm; NA=0.55 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL2520-B 25 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=20 mm; NA=0.54 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL2550-B 25 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=50 mm; NA=0.23 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL4532-B 45 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=32 mm; NA=0.61 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL5040-B 50 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=40 mm; NA=0.55 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | S-LAH64 | Circular |
| AL50100-B 50 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=100 mm; NA=0.24 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |
| AL7560-B 75 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=60 mm; NA=0.62 AR 650-1050nm | Optics | Lens | Aspheric Lens | Thorlabs | N-BK7 | Circular |