Demand for IP/network cameras is growing at an unprecedented speed in the security market. Today’s requirement for high image-quality mandated resolution higher than 5-megapixel / Full HD 1080P.
Double Vari-Focal lens system
To address the market need, Tamron has released a ‘Double Vari-Focal’ lens system, a complementary lens-pair solution that powerfully supports major security applications: an M13VG288IR (f=2.8-8mm) lens and an M13VG850IR (f=8-50mm) lens to seamlessly cover the entire focal length range from the wide-angle f=2.8mm to the telephoto-end f=50mm. Because of the universal angular field of view coverage being addressed between the two, the solution has received exceptionally high recognition in the market.
Demand for large-size 1/1.8” and 1/2” imagers has also grown prominently for surveillance installations in highly populated urban areas, where distinguished resolving power becomes critically important to make the most of the imaging capabilities of 5-megapixel sensors. A new lens, M118VG1250IR, now released by Tamron, specifically addresses the needs in the surveillance market.
Tamron, as an integrated optics manufacturer, progressively pursues development of such high-quality and innovative products.
M118VG1250IR highlights and features
1. NIR lens covering focal lengths most universally utilised in telephoto applications: The new lens delivers high-quality images throughout the most commonly used focal length range of 12-50mm. Expanding the spectrum coverage to NIR region, the lens enhances and assures high-precision and high-efficiency day-and-night surveillance.
2. High-quality NIR imaging: An ideal lens for day-and-night mega-pixel surveillance with chromatic aberrations well compensated for delivers improved performance in the NIR bandwidth and well-tuned image quality from corner to corner. Tamron’s proprietary optical design with an optimal choice of glass materials backed by high-precision process technology brings an ideal balance in performance to cost
3. Discrete optical design considering low-light conditions: The image circle diameter is expanded to permit compatibility with 1/1.8” imagers widely adopted in the security/surveillance market. A fast aperture of F/1.4 is achieved by a new optical design, while the minimum aperture stops down to F/360. The new lens is also compatible with 1/2” and 1/3” imagers.
4. Substantial reduction of flare and ghosting: The performance of the new lens has gone through extensive validation processes using state-of-the-art simulation, weighed heavily on specific conditions of a wide variety of surveillance scenes. Disturbing flare and ghosting are attenuated to the minimum and Tamron’s proprietary multi-coating technology is employed to thoroughly reducing flare and ghosting.
5. Pursuit of high utility and high reliability: In line with Tamron’s product development philosophy for high reliability, proprietary knowledge and manufacturing know-hows have been extensively utilised for the design and manufacturing of the new lens, M118VG1250IR, similar with other Tamron products.
| Make | Tamron |
|---|---|
| Manufacturer | Tamron Co., Ltd. |
| Model code | M118VG1250IR |
| Lens Type | Varifocal |
| Lens Format inches | 1/1.8 inch |
| Focal Length mm | 12~50 mm focal length |
| Iris Type | Auto Iris |
| Lens Mount | CS mount |
| F-Stop | F1.4~360 F-stop |
| Angle (Field) of View o | 34.0 x 25.5 |
| Physical Specifications | Weight g: 130 |
| Electrical Specifications | Voltage: 4V |
| Environmental Specifications | Operating Temperature oC: -20 ~ +60 |
| Varifocal | Yes |
| Additional info |
In line with Tamron’s product development philosophy for high reliability, proprietary knowledge and manufacturing know-hows have been extensively utilised for the design and manufacturing of the new lens, M118VG1250IR, similar with other Tamron products: large rotation angle for faster and easier focusing, slip-mount mechanism for faster and easier camera / lens installation and assembly, and highly-reliable auto iris mechanism. |