Canon Digisuper 86 TELE Specyfikacja - Strona 2

Przeglądaj online lub pobierz pdf Specyfikacja dla Obiektyw kamery Canon Digisuper 86 TELE. Canon Digisuper 86 TELE 4 stron. Ultra high zoom ratio field lens with image stabilizer- a technology breakthrough

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XJ86x9.3B IE- II 9.3-800mm 1:1.7

XJ86

13.5B IE- II 13.5-1161mm 1:2.4

: The letters " " come from the word "Excess", an indication that the new generation of

all conventional lens specifications and concepts by using breakthrough technologies.

specification lenses in smaller and lighter packages.

Optical Performance with an 86x

Zoom Ratio and improved Wide Angle

The DIGISUPER 86II xs & DIGISUPER

86II TELE xs are an extraordinary field

lens that utilizes Canon's new optical

design concept "POWER OPTICAL

SYSTEM" and " -Element".

By adopting this new technology and

concept, the DIGISUPER 86 xs realizes

the necessary optical performance for

HDTV, with increased zoom ratio of 86x,

improved wide angle of 9.3mm while still

maintaining the size equivalent to that of

current SDTV lenses.

-Element & POWER OPTICAL

SYSTEM

Canon has developed this breakthrough

optical design concept using a newly

developed optical element in the most

effective way.

We have named this design concept the

"Power Optical System" which achieves

higher specifications and quality using the

optical " -Element" which virtually

eliminates aberrations.

Image Stabilizer

The history of field lenses is a history of

zoom ratio/focal length extension. It came

to a point where the industry thought it

Image Stabilizer

How the Optical Shift Image Stabilizer (Shift-IS) Works

When the lens moves, the light rays from the subject are bent relative to the optical axis, resulting in an

unsteady image because the light rays are deflected. By shifting the IS lens group on a plane perpendicular to

the optical axis to counter the degree of image shake, the light rays reaching the image plane can be steadied.

Since image shake occurs in both horizontal and vertical directions, two shake-detecting sensors for yaw and

pitch, detect the angle and speed of movement and send this information to a high-speed 32-bit

microcomputer, which converts the information into drive signals for the IS lens group. Then the actuator

moves the IS lens group horizontally and vertically thus counteracting the image shake and maintaining the

stable picture. The Shift-IS component is located within the lens groups and is most effective for lower

frequency movements caused by platform vibration or wind effect without increasing the overall size and

weight of the master lens.

TELE

would be impossible to push the envelope

any further. The telephoto focal lengths of

the lens got so long that even the slightest

amount of wind or operator movement

would cause image shake and viewing the

picture became intolerable, this was before

Canon announced the incredible

magnification DIGISUPER 86 xs zoom

lens. Canon, renowned for its optical

image stabilization technologies,

developed another new stabilization

solution for the broadcast field lens, a

built-in Optical Shift Image Stabilizer

(Shift-IS) to overcome image shaking at

telephoto focal length. Now the Shift-IS is

employed in the DIGISUPER 86II xs &

DIGISUPER 86II TELE xs.

"CAFS" Constant Angle Focusing

System

The zooming effect of focus is the

phenomena where the picture size (angle

of view) changes when focusing

(breathing). However, a 32bit CPU

calculates and controls the zoom when

focusing in order to counteract these

phenomena. Thus the DIGISUPER 86II xs

& DIGISUPER 86II TELExs have zero

zooming effect of focus throughout the

whole zoom range.

lenses exceeds

allows for higher

Focus

Zoom

Motor

Digital

Motor

Sensor

Digital

32Bit

Sensor

CPU

Digital Servo System

CROSSOVER COMPATIBILITY

Available optionally is the dual aspect

ratio switching system, "CROSSOVER",

for switchable 16:9/4:3 cameras.

Latest Generation DIGITAL SERVO

SYSTEM

Canon's latest generation digital servo

system allows the use of many new

functions such as constant angle of view

while focusing "CAFS" and the selection

of different servo characteristics.

These functions are only possible with a

digital servo system. In addition to these

new functions, the upgrading of software

will be possible when new functions

become available in the future. This

means that the DIGISUPER 86II xs &

DIGISUPER 86II TELExs have

unlimited possibilities.

1.Lens when still.

Image plane

To Subject

2.Lens when jerked downward.

3.Counteraction by IS lens group.

Corrected light rays

Position of IS lens group

after shifting

Camera

shake