Canon KJ10EX4.5B IRSE 用户手册

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Defocus(mm)

MTF(%)

Canon’s Philosophy:

Canon has always developed new technology with four basic philosophies, "High Quality of Picture", "Ease of Operation", 

"High Specification" and "Minimize Environmental Impact". Canon's HDTV lenses are, so to speak, a compilation of our 

basic philosophies. Now, Canon adds a new concept to the HDTV lenses by launching the new HDgc Series.

Corresponding to the popularity of digital High Definition broadcasting and diversity of HDTV 
equipment, Canon has added a new series to its HDTV lens line up, the HDgc series. The new HDgc 
series supports the emergence of an important new generation of cost-effective HD acquisition systems. 
Adopting the advantages created by Canon’s unique technology,  the new HDgc lenses exhibit high 
MTF, high resolution and high contrast from the center of the image to its extreme edges, meanwhile 
maintaining its compact size and weight.
Another important policy of Canon’s is not to pollute the earth and the HDgc series succeeded in 
excluding harmful substances such as cadmium, PBBS, PBDPE or mercury from the mechanical parts, 
and at the same time incorporating lead free glass and reducing the amount of hazardous substances 
used in electrical parts.
Meet Canon’s new HDgc series lenses, a compilation of Canon’s advanced technologies.

In the HDTV system the pixel size is about half. Therefore, the spread of a point image caused by a 
spherical aberration, coma etc. should be diminished to about half.  The MTF varies as the focus 
changes and even if the image is slightly out of focus, the MTF is greatly influenced as shown in 
Graph 1. HDgc greatly contributes to correcting and minimizing these aberrations at the same time 
maintaining high MTF throughout the edge of the picture.

With the goal of minimizing chromatic aberration, the HDgc series lenses utilizes special elements 
including an artificially re-crystalized element, “Fluorite”, with extraordinary dispersion characteristics 
and the newly developed “Hi-UD” (high index ultra low dispersion) glass. Canon has succeeded in the 
practical use of special elements along with advanced design techniques like “separate achromatism”.

The KJ10ex4.5B carries Canon’s original Enhanced Digital Drive, a drive unit equipped with an information display and a digital function 
selector so that the user can customize the enhanced digital functions much more easily and precisely. The new design enables the user to 
fully bring out the digital functions.

By memorizing any two 

focal lengths, the digital drive can 
automatically "shuttle" between the two 
points, moving in either direction.

An angle of view 

can be preset in either of two memories 
and the lens will zoom to that position 
by pushing a simple button. During a 
performance, framing preset will reproduce the zoom 
position decided upon at the rehearsal. It is easy to repeat 
the same zoom as often as you like at the highest speed or 
in a preset zoom speed.

A specific zoom speed 

can be preset in memory and it is 
possible to repeat the zoom speed as 
often as you like by pushing a simple button.

KJ10ex4.5B IRSE

01

.5B

M

31

237.7

φ

95

HOOD

4.5-45mm

MADE IN JAPAN

CANON

1:1.8

ft

5

0.4

1.3

2.5

10

5m

0.3

30

1

1.5

0.7

0.5

2.5

CANON BCTV ZOOM LENS

4.5

45

30

15

8

11

5.6

48±0.03(in air)

168.2

119.7

40.6

52.9

45

ﾟ

VTR SWITCH

110.6

39.5

48.5

57.3

AUX1 SWITCH

DIGITAL FUNCTION SELECTOR

INFORMATION DISPLAY

INFORMATION DISPLAY On/Off SWITCH

F.B. ADJUSTING LOCK SCREW

INDEX MARK

IMAGE PLANE

MACRO BUTTON

EXTENDER LEVER

ZOOM OPERATION
CHANGE-OVER KNOB

ZOOM SPEED VOLUME

ZOOM LEVER

CONNECTOR FOR ZOOM REMOTE
& FOCUS REMOTE UNIT(20PIN)

CONNECTOR FOR
REMOTE ZOOM CONTROL(8PIN)

CONNECTOR FOR ZOOM REMOTE
& FOCUS REMOTE & VIRTUAL UNIT(20PIN)

16

8

C

∞

1.0x

2.0x

10x

4.5 – 45mm

9 –90mm

74.1 x 41.7cm

at 4.5mm

6.4 x 3.6cm

at 45mm

37.0 x 20.8cm

at 9mm

3.2 x 1.8cm

at 90mm

93.7

° x 61.9°

12.2

° x 6.9°

56.1

° x 33.4°

6.1

° x 3.4°

0.3m (10mm with Macro)

W x H x L = 168.2 x 110.6 x 237.7 mm

1.83kg

2/3 inch

Image Format Covered

Built-in extender

Zoom Ratio

Range of Focal Length

Maximum Relative Aperture

Angular Field of View

Minimum Object Distance( M.O.D. )

Object Demensions at M.O.D.

Approx. Size

Approx. Mass

1:1.8 at 4.5 – 34.5mm
1:2.35

at 45mm

1:3.6

at 9 – 68.9mm

1:4.7

at 90mm

●

Zoom Speed from 0.5sec. to over

   5min. (From wide end to tele end)

The KJ10ex4.5B is equipped with an enhanced 
digital drive unit. Conventional potentiometers 
are analog positional sensors capable of only 
8-10 bit equivalent resolution. Thus virtual 
portable studio systems called for an optional 
Encoder Unit to be put on the zoom and focus 
ring of the lens. With the introduction of 16 bit 
resolution Rotary Encoder Devices built into the 
new enhanced digital drive unit, the lens can 
simply be integrated into a virtual digital studio 
system without any additions. The encoders also 
enable superior precise control. The zoom servo 
provides a dynamic range of 0.5 sec. to over a 5 
min. super slow zoom. Repeatability in focus 
and iris control are also much more precise. 
Canon’s unique technology has made the 
encoder device surprisingly small to be installed 
in the existing drive unit without changes in size 
or weight. 

The HDgc series has succeeded in reducing the 
use of harmful and hazardous substances that 
could pollute the environment.

Lens with Optional
Encoder Unit

Lens with Encoder Devices 
included in the Drive Unit

703-0969 キヤノン（株）下丸子本社様 

KJ10EX4.5B IRSE PDF作成 07/04/04