Objektív TAMRON 2,8-12mm
Asférický VARI-FOCAL objektív 1/3 2.8 - 12mm F/1.4
Aspherical Optical Technology
Sharper image quality is achieved through Tamron's use of an Aspherical element. This enhances overall performance by eliminating image distortion and providing superb corner to corner sharpness.
Versatile Focal Range
Tamron's 2.8 - 12mm Vari-Focal redefines the standard for the CCTV industry. From extremely wide-angle to telephoto, this one lens can be used in virtually all CCTV security applications.
Fast F/1.4 Aperture
With an aperture range of F/1.4 ~ 360 (Auto Iris versions) and a 3-blade diaphragm (for manual iris), the Tamron 2.8 - 12mm is the ideal lens for use in extreme lighting conditions.
Three Types of Iris Selection
Not only can you get Tamron's 1/3" CS-mount 2.8 - 12mm lens in Manual Iris and DC Auto Iris, Tamron also offers a Video Auto Iris version to meet the discriminating needs of today's applications.
Specifications
| Manual Iris | DC Iris | Video Iris | |
| Model # | 13VM2812AS | 13VG2812AS-SQ | 13VA2812AS-SQ |
| Image Format | 1/3" | 1/3" | 1/3" |
| Focal Length | 2.8-12mm | 2.8-12mm | 2.8-12mm |
| Iris Range | F/1.4-Close | F/1.4-360 | F/1.4-360 |
| Focus Operation | Manual w/Lock Screw | Manual w/Lock Screw | Manual w/Lock Screw |
| Zoon Operation | Manual w/Lock Screw | Manual w/Lock Screw | Manual w/Lock Screw |
| Angle of View - Wide | 97.4° x 72.5° | 97.4° x 72.5° | 97.4° x 72.5° |
| Angle of View - Tele | 24.1° x 18.1° | 24.1° x 18.1° | 24.1° x 18.1° |
| Effective Diameter - Front | 26.4mm | 26.4mm | 26.4mm |
| Effective Diameter - Rear | 8mm | 8mm | 8mm |
| Minimum Object Distance | 0.3mm | 0.3mm | 0.3mm |
| Back Focus (in air) | 8.6mm | 8.6mm | 8.6mm |
| Maximum Diameter | 40mm | 40mm | 40mm |
| Overall Length | 54.6mm | 54.6mm | 54.6mm |
| Mount | CS | CS | CS |
| Weight | 72g | 79g | 82g |