Two models of a 3.0-8mm F/1.0 Vari-Focal lens model are fast and IR-corrected while supporting 650 TV-line resolution performance.
Development Background
With the diversification of image sensors in the field of surveillance cameras for VGA and SD applications, new image sensors such as CMOS sensors are now popular in addition to conventional CCD image sensors. At the same time, ICs for processing image data began to offer higher performance. Along with these technological advances, surveillance cameras have been improving at an accelerating pace to deliver higher quality images and higher sensitivity. Following the trend, performance requirements for lenses are now more strict than ever. Not only enhanced resolution performance, but descriptive performance without color smear is now required as well. We at Tamron thought that lenses based on a new concept are essential in order to derive the maximum performance from these latest cameras, and have thus developed two new IR- corrected high resolution Vari-Focal lenses.
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