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TECHSPEC® C Series Fixed Focal Length VIS-NIR Lenses are designed for use in machine vision applications that require NIR or VIS-NIR performance, with the working distance and resolution requirements of factory automation and inspection in mind. Featuring large maximum apertures and a Broadband Anti-Reflection (BBAR) coating designed out to 1000nm, these high performance lenses can be used in even the most restrictive lighting conditions. TECHSPEC® C Series Fixed Focal Length VIS-NIR Lenses are manufactured to a high tolerance, resulting in greater levels of imaging performance and low lens-to-lens variation, assuring simple installing into multiple systems. By combining high optical performance, industrial features, and small package size, the C Series Fixed Focal Length VIS-NIR Lenses represent a new standard in factory automation optics.
Also available with a VIS Broadband Anti-Reflection (BBAR) or SWIR Coatings
Note: For IR imaging alone, UV-VIS Cut Filters are available and thread directly onto the front filter threads of the 4.5mm, 16mm, 25mm, 35mm and 50mm FL lenses.
| Focal Length | A | B | C | D |
| 3.5mm | 50.0mm | 39.3mm | 32.0mm | 2.72mm |
| 4.5mm | 40.0mm | 37.5mm | 32.0mm | 2.78mm |
| 6.0mm | 36.0mm | 48.9mm | 35.8mm | 1.4mm |
| 8.5mm | 32.0mm | 34.5mm | 32.0mm | 0.0mm |
| 12mm | 32.0mm | 27.9mm | 32.0mm | 0.5mm |
| 16mm | 33.0mm | 40.5mm | 33.0mm | 1.0mm |
| 25mm | 31.0mm | 30.5mm | 31.0mm | 1.3mm |
| 35mm | 33.0mm | 41.0mm | 33.0mm | 0.0mm |
| 50mm | 35.8mm | 53.7mm | 35.8mm | 2.85mm |
| 100mm | 52.0mm | 93.5mm | 41.0mm | 7.0mm |
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