As high-definition television production increases, the need for effective image stabilization grows, as unintentional movement in a camera is more noticeable in high-definition formats, due to its precision in detail. With this need in mind, Canon introduced the new HJ15ex8.5B KRSE-V portable zoom lens with integrated optical image stabiliser.
Designed to maintain stable images even when the camera is shaken and vibration, the HJ15ex8.5B KRSE-V uses Canon Vari-Angle Prism (VAP-IS) stabilization technology to achieve high image stability in both telephoto and panoramic shots.
This is the first portable HD zoom lens with built-in image stabilizer. VAP-IS allows the lens to weigh only 4.4 pounds, making it considerably lighter than other solutions for portable high-definition cameras of the ENG type.
The lens is designed for difficult shooting situations because it can stabilize a wide range of vibration frequencies. Examples range from low-frequency vibrations such as those faced by cameramen in the midst of crowds or in operations with tripods mounted on unstable platforms, to high-frequency vibrations such as those presented when operating in helicopters, cars, motorcycles and boats.
The lens provides four selectable stabilization modes to allow operators to optimize the degree of correction under various and sometimes special filming conditions.
VaP-IS technology incorporates a new optical group made of two flat glass elements joined by sealed bellows containing a liquid of a high refractive index, selectively located within the overall optical system of the lens. Physical disturbances on the lens, in the form of jumps or vibrations, flex the bellows in proportion to the amplitude of these disturbances.
The associated distortion of the liquid instantly alters the direction of the transmitted light rays in a manner designed to counteract the incoming light displacements created by these disturbances. The system has been optimized to introduce a high degree of real-time compensation for image instabilities caused by all forms of operational imbalances of camera lenses.
