Tamron 13VM2812ASII Normal Vari-Focal Lens With Manual Iris
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→ Mount Type: CS
→ Focal Length: 2.8 - 12mm
→ Aperture Range: 1.4 - Close
→ Angle of View (Horizontal x Vertical): : Wide - 97.4° x 72.5°/Tele - 24.1° x 18.1°; 1/4: Wide - 72.5° x 54.1°/Tele - 18.1° x 13.6°
→ Focusing Range: 0.3m - ∞
→ Operation: Focus: Manual with Lock; Zoom: Manual with Lock, Iris: Manual with Lock
→ Back Focus (in air): Wide 8.61 - Tele 19.90mm
→ Weight: 1 lb.
→ Operating Temperature: -20°C - 60°C
The Tamron 13VM-2812ASII is a normal vari-focal lens with a manual iris. Near-infrared radiation refracts differently from visible light, causing blurring in video footage captured in the near-infrared spectrum. The Tamron High Resolution IR Lens Series utilizes cuffing-edge optical design technology and advanced low-dispersion glass to converge the focal points of visible light and near-infrared radiation, providing exceptionally sharp image quality 24-hours a day.
Tarnron's High Resolution IR Vari-Focal Lenses incorporate Aspherical elements and ID (Low-Dispersion) glass to provide a resolution of 650W lines. The resolution at the image corners has been improved by more than 50% over conventional models to provide superb image quality over the entire image field.
The focal point of the near-Infrared spectrum is corrected to match that & visible light to provide exceptional image quality over the entire range of wavelengths from visible light to near-Infrared. The fast aperture of F/1.0 enhances the overall sensitivity of Day & Night cameras, allowing operation In color mode under dimmer lighting conditions than with conventional F/1.2 and F/i .4 lenses.
The 13VM2812AS-II features a focal length of 2.8-12mm with an aperture range of 1.4-close. With the advance of high-resolution cameras and the rapid digitization of recording systems, there is a growing demand for GCTV camera lenses that can provide high resolution across the entire screen. As a leading manufacturer of integrated optics, Tamron now offers a lineup of high resolution Van-Focal lenses that meet today's demand for Image resolution, while maintaining a compact and easy-to-install design.
Tamron's devotion to image quality is evident in the exceptional image resolution. Our high resolution Van-Focal Lenses provide a resolution of 650 TV lines over the full range of aperture sizes. Multi-coating Is applied to key lens a surfaces to minimize ghosting and flare. The result is consistently sharp contrast and excellent image quality. Each control ring for zoom, focus and iris* can be independently locked to prevent deviation after installation. (*Manual iris only)
Each lens is equipped with a slip-mount mechanism that allows rotational adjustment of the lens after it is mounted on the camera. This allows optimal positioning of the auto-iris actuator and cable during installation. All lens components are produced using advanced, high-precision manufacturing technologies to prevent image defects such as local blur and focus shift.
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13VM20100AS: Focal Length: 20-100mm, Aperture Range 1.6 - Close.
