Computar Varifocal IR (infrared) manual iris lenses are designed for use with Day/Night cameras. They eliminate focus shift in night mode, especially in the presence of IR lighting. All lenses are CS-Mount, comprised of all glass optics, come with locking set screws and a durable metal barrel and mount, and are covered by a three year warranty.
Focal Length | 4.5 - 12.5mm |
Max. Aperture Ratio | 1:1.2 |
Max. Image Format | 6.4 x 4.8 mm (ø8 mm) |
Operation Range | Iris: F1.2 to F16C Focus: 0.3m to infinity Zoom: 4.5mm - 12.5mm |
Control | Iris: Manual Focus/Zoom: Manual |
Object Dimension at M.O.D. | 4.5mm: 53.7cm x 35.6cm 12.5mm: 16.1cm x 12cm |
Angle Of View | 1/2 type - 108.0 - 37.6°(D), 83.7 - 30.1° (H), 61.3 - 22.6° (V) 1/3 type - 77.9 - 28.3° (D), 61.3 - 22.6° (H), 45.3 - 17.0° (V) 1/4 type - 57.2 - 21.2° (D), 45.3 - 17.0° (H), 33.7 - 12.7° (V) |
Operating Temperature | -20 to 50°C |
Effective Lens Aperture | Front: ø19.9 mm Rear: ø9.9 mm |
Back Focal Length | Tele: 16.5 mm Wide: 8.5 mm |
Flange Back Length | 12.5 mm |
Mount | CS-Mount |
Filter Size | M35.5 P=0.5mm |
Dimensions (W x H x D) | ø41.6mm x 48.8mm |
Weight | 66g |