Tamron OBJVG2811DCIR Varifocal Lens

Tamron OBJVG2811DCIR IR Corrected Varifocal Lens with 2.8 to 11 Millimeter Focal Length for 1/3 Inch Sensors

The Tamron OBJVG2811DCIR is a high-quality IR corrected varifocal lens with a focal length range of 2.8 to 11 millimeters. It is specially developed for 1/3 inch image sensors and delivers razor-sharp images with its F1.2 aperture. The special glass materials focus light up to 1000 nanometers precisely at the same point, ensuring that no defocusing occurs under IR illumination. Additionally, the lens is coated to allow maximum infrared light transmission. The wide field of view combined with perfect IR correction makes this lens ideal for outdoor surveillance of larger areas.

Modern optical designs and LD elements in the vari-focus lenses ensure that no shift in the focal plane occurs between visible and infrared light. Light rays from both spectra are focused on the same plane, significantly improving image sharpness. This compensation is particularly important for day/night cameras and conventional black-and-white cameras sensitive to visible and near-infrared light. With DC-controlled auto iris and manual focus and zoom, the lens adapts flexibly to any situation.

The Tamron OBJVG2811DCIR offers fields of view of 97.4 degrees horizontal and 72.4 degrees vertical in wide-angle position, and 26.2 degrees horizontal and 19.7 degrees vertical in telephoto position. The CS-mount interface and compact design of 58.1 by 62.8 millimeters make installation simple. The temperature range from minus 20 to plus 60 degrees Celsius and the robust construction make it ideal for indoor and outdoor use. The 4-pin cable configuration for Cont minus, Cont plus, Drive plus, and Drive minus ensures reliable auto iris control.

Why the Tamron OBJVG2811DCIR is the best IR corrected varifocal lens:

• IR correction up to 1000 nanometers without defocusing
• 2.8 to 11 millimeter focal length for wide-angle to telephoto
• F1.2 aperture and DC drive auto iris
• Special glass materials and coating for maximum IR transmission
• Perfect sharpness day and night for 1/3 inch sensors
• CS mount compact design 58.1 by 62.8 millimeters
• Field of view up to 97.4 degrees horizontal in wide-angle position
• Manual focus and zoom for precise adjustment
• Temperature range minus 20 to plus 60 degrees Celsius

Technical Data:

• Mount: CS Mount
• Chip size: 1/3 inch (8.46 millimeters)
• Aperture: F1.2
• Focal length: 2.8 to 11 millimeters
• Field of view wide-angle: 97.4 degrees × 72.4 degrees
• Field of view telephoto: 26.2 degrees × 19.7 degrees
• Iris control: Auto Iris, DC-controlled
• Focus: Manual
• Zoom: Manual
• Temperature range: minus 20 to plus 60 degrees Celsius
• Back focal distance: 8.66 to 18.66 millimeters
• Maximum diameter × length: 58.1 × 62.8 millimeters