Canon HJ15EX8.5BKRSE-V Manual De Usuario

e

x

-V

Preserving Full HDTV Optical Performance with incorporation of IS System
The nature of high definition imagery is the sensitivity to a sudden lowering of image 
quality when the originating HD lens-camera system is subject to physical disturbances.  
Based upon long term operational studies and extensive research Canon has successfully 
developed a powerful real-time counter to the many forms of physical disturbances that can 
be encountered on location shooting.

Powerful Image Stabilization for Various Environments
Throughout the entire zoom range, the Vari-angle Prism image stabilizer technology 
provides real-time compensation for a wide range of disturbance frequencies to ensure 
a high level of HD image stabilization. These disturbances include lens-camera jolting 
associated with handheld and shoulder mounting by a camera operator who is in motion,  
vibrations when tripod mounted on an unstable platform or in windblown environments, 
to the higher vibration frequencies encountered when operating on vehicles, boats, and 
aircraft.

In order to optimize the image stabilization action for  different shooting conditions, various 
stabilization modes are selectable. Combination of two modes from each category is 
available and each mode is simply set by changing the switches on the lens. 

Under perfect shooting conditions, light rays from a scene pass through the lens optical 
system in a tightly prescribed manner.  Any vibration or jolt to the lens-camera system 
will deflect those light rays and produce image unsteadiness.  The VAP-IS technology is 
incorporated within the lens optical system to intercept such light ray perturbations and 
correct their deviations in real-time.  The technology to do this is based upon a flexible 
optical bellows that entails two flat glass elements separated by a special liquid forming a 
sealed mini-optical grouping within the overall lens element groupings. The bellow expands 
and contracts when the lens is physically disturbed – and the very high refractive index 
of the liquid bends the disturbed light rays in the opposite direction.  This imparts a high 
degree of real-time correction to the angle of the light rays, ensuring they arrive at the 
image plane devoid of any unsteadiness.   There is considerable science underlying this 
optomechanical subsystem and some years of incremental refinements to the design that 
have produced the very high performance in the new HJ15ex8.5B lens. 

Canon introduces an important  innovation  in HD production portable lens, 
the HJ15ex8.5B KRSE-V.  This is specifically intended to extend production 
flexibilities in mobile HD shooting of many forms.  The lens embodies a 
built-in optical image stabilization system based upon Canon’s patented 
Vari-Angle Prism Image Stabilizer (VAP-IS) technology.  Canon’s IS 
technology has been significantly improved over an earlier system deployed 
a decade  ago in a standard definition lens.   Rock solid imagery is ensured 
when the lens-camera system is subjected to a wide range of perturbation 
frequencies encountered by a camera operator who is shooting handheld 
while walking, running, or operating from a motorcycle pillion, within a 
moving vehicle, boat, or helicopter.

Incident Ray

Image Plane

Image 
Shake

Select According 
to the 
Shooting Situation

Compensates for motion-related disturbances while                   
shooting shoulder mount or handheld

Effectively compensates for disturbances caused by 
unsteady platform or wind.

Select According
to the Direction 
of Disturbance

Optimizes stabilization action when disturbance frequencies 
are both horizontal and vertical

Effectively counters vertical disturbances while operationally 
panning the lens-camera

Light Ray