聚焦系统
| 最大光圈 |
360 |
| 焦距 |
2.8 - 8 mm |
| 光圈范围 |
1.2 - 360 |
| 变焦能力 |
y |
| 后焦点 |
14.944 mm |
| 最近聚焦距离 |
0.3 m |
| 组件应用 |
CCTV Camera |
| 焦距调整 |
Manual |
| 最小光圈 |
1.2 |
CCTV, Full HD, 2.8-8mm, F1.2 DN, 70g
<b>High Performance At 3 Mega-Pixel /Full HD Mega-Pixel Resolution In The Near Infrared Spectrum</b>
Near infrared radiation refracts differently from visible light, causing blurring in an image captured in the near infrared spectrum.
Tamron IR Mega-Pixel Lenses utilize cutting-edge optical design technology and advanced low dispersion glass to converge the focal points of visible light and near infrared radiation, providing 3 mega-pixel image quality 24-hours a day.
<b>Delivering Exceptional Image Quality And Outstanding Video Surveillance Day Or Night Using State-Of-The-Art Aberration Correction Up To The Near Infrared Spectrum</b>
With conventional lenses, image blurring occurs in surveillance camera video footage shot under near infrared illumination because the optimum focus point changes as a result of the
difference between the refractive indices of near infrared and visible light, which also affects their wavelengths (see figure at right). The Tamron IR Mega-Pixel Lens Series features the latest optical design formulas and low dispersion glass technologies that resolve this focus point discrepancy. This eliminates image degradation, even in black and white mode, and delivers 3 mega-pixel quality image for 24-hours surveillance at any time of day regardless of the lighting conditions.
