Canon FK14.5-60 User Manual download pdf (Page 20)

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 a

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.

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

The history of field lenses is a history of zoom ratio/focal length

extension. It came to a point where the industry thought it would be

impossible to push the envelope any further. The telephoto focal

length of the lens became 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 of the DIGISUPER 86xs 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 lengths. Now, the Shift-IS is

employed in the following lenses:

DIGISUPER 100AF

DIGISUPER 100xs

DIGISUPER 86AF

DIGISUPER 86IIxs

DIGISUPER 86IITELExs

DIGISUPER 75xs

HJ40x Series

Converter

Lens Camera

Electronic

Conversion

Image Size Conversion

LO-32BMT

2/3" B4 Mount 1/2" SONY approx. 1.4x –––––

LCV-41E

2/3" B4 Mount SONY PMW-EX3 approx. 1.4x

Lens Cable

(12pin)gEX3

Hot Shoe(14pin)

LCV-40B

2/3" B4 Mount

1/2" Standard

Mount

approx. 1.4x

–––––

LCV-42T

2/3" B4 Mount

1/3" Standard

Mount

approx. 1.8x

–––––

Canon offers a variety of Mount Converters to be used between a

lens and a camera of different image format sizes. Each converter

will extend the effective angular field of view of the associated lens

according to the Shift Ratio listed below

*1 SONY's Hot Shoe mount camera, excluding PMW-EX3

*2 1/2" Camera of standard type mount (Panasonic, JVC, Ikegami)

*3 Only applicaple to KH10ex/KH16ex/KH21ex

The other 1/2" mount lenses are not available

Note: The converters are to be used with lenses weighing less then 2.0kg (4.4lbs)

LCV-20E

1/2" SONY PMW-EX3 –––––

Lens Cable

(12pin)gEX3

Hot Shoe(14pin)

LO-32BMT

LCV-40B

LCV-42T

LCV-41E

LCV-20E

Shift Ratio to

Telephoto Side

External Extender Control Unit

RE: motorized 2X extender ME: manual 2X extender

Remote Control Accessories

(not available for HJ18ex / HJ14ex)

Four types (82CL-UP800H / 82CL-UP1300H / 105CL-UP900H /

105CL-UP800HD) are available.

Remote Controller

Several models are available.

*The controllers are also applicable to remote control

pro-video lenses.

Connecting Cable

5m, 10m, 20m, 50m and 100m cables are available.

Maximum cable length is 150m by connection of these cables.

Mount Converters for Different Image

Format Size Cameras

Optical Shift Image Stabilizer

(Shift-IS) Technology

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Canon FK14.5-60 User Manual Page 20

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