Tamron 13VA2812AS-SQ 1/3-inch Vari-Focal Lens
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→ Focal Length: 2.8-12mm
→ Iris Range: F/1.4-Close
→ Focus Operation: Manual w/Lock Screw
→ Zoom Operation: Manual w/ Lock Screw
→ Angle of View: Wide: 97.4° x 72.5°/Tele: 24.1° x 18.1°
→ Effective Diameter: Front Ø 26.4mm, Rear Ø 8mm
→ Minimum Object Distance 0.3mm
→ Back Focus (in air): 8.6mm
→ Maximum Diameter Ø 1.57in (Ø 40mm)
→ Overall Length: 2.2 in.
→ Mount: CS
→ Weight: 1 lb.
The Tamron 13VA2812ASSQ is an aspherical vari-focal lens with an image format of 1/3". 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 13VA2812AS SQ features a focal length of 2.8-12mm and an iris range of F/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.
Similar Models:
13VA286T: Focal Length: 2.8-6mm, Aperture Range 1.2 - 64.
13VA308AS: Focal Length: 3.0-8mm, Aperture Range 1.0 - 360.
13VA550T: Focal Length: 5-50mm, Aperture Range 1.4 - 185.
