Momentary Iris Switch

Display Switch

Digital Function

 

Retum Switch

 

Selector

Informational

Display

 

VTR switch

 

Memory

[Aux2] switch for

[Aux1] switch for

Switch

enhanced operation

enhanced operation

 

 

 

 

 

Enhanced Digital Drive Unit

 

Ecological Design

 

 

 

 

Rotary Encoder

The KH21ex5.7 is equipped with an enhanced digital drive unit. Conventional potentiometers are analog positional sensors capable of only 8- 10 bit equivalent resolution. Thus virtual ENG 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.

HDTV Optical Performance

SPECIFICATIONS

KH21ex5.7 IRSE

New HDgc Logo

Built-in 2x Extender

Short M.O.D. 0.8m (10mm with Macro)

Dynamic Zoom Speed Range

Zoom Speed from 0.5sec. to over 5min. (From wide end to tele end)

Zoom Ratio 21x

Reduced Chromatic Aberrations

High and Flat MTF

Countermeasures Against Ghosting and Flares

Lens with Optional

Lens with Encoder Devices

Encoder Unit

included in the Drive Unit

Ecological Design

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

Built-in extender

Zoom Ratio

Range of Focal Length

Maximum Relative Aperture

Angular Field of View

Minimum object Distance (M.O.D.)

Object Dimensions at M.O.D.

Approx. Size

Approx. Mass

DIMENSIONS 45.3

16:9

1.0X

 

 

2.0X

 

 

21X

 

 

5.7 – 120mm

 

 

11.4 – 240mm

1:1.4 at 5.7 – 86mm

 

 

1:2.8 at 11.4 – 172mm

 

 

1:1.95

at 120mm

 

 

1:3.9

at 240mm

62.9° x 38.0°

 

 

34.0° x 19.5°

3.3° x 1.9°

 

 

1.7° x 0.9°

 

0.8m (10mm with Macro)

 

92.2 x 51.9cm

at 5.7mm

 

 

46.1 x 26.0cm at 11.4mm

4.3 x 2.4cm

at 120mm

 

 

2.2 x 1.2cm

at 240mm

 

W x H x L = 169.4 x 111.9 x 217.5 mm

 

 

 

1.79kg

 

 

 

 

 

 

VTR SWITCH

INFORMATION DISPLAY On/Off SWITCH

 

 

 

 

 

 

 

 

 

F.B. ADJUSTING LOCK SCREW

INFORMATION DISPLAY

 

 

 

 

 

217.5

 

38±0.03

 

INDEX MARK

DIGITAL FUNCTION SELECTOR

 

 

 

MACRO BUTTON

EXTENDER LEVER

(in air)

AUX1 SWITCH

φ98

12 20

6

m

7

4

7.1

120

5.6

11 8

60

16

30

C

15

 

10

 

5.7

 

°45

52.9

IMAGE PLANE

62.139.5 111.9

 

ZOOM OPERATION

 

 

HOOD

CHANGE-OVER KNOB

40.6

119.7

CONNECTOR FOR

 

 

169.4

REMOTE ZOOM CONTROL (8 PIN)

ZOOM SPEED VOLUME

 

 

CONNECTOR FOR ZOOM REMOTE

& FOCUS REMOTE UNIT (20 PIN)

ZOOM LEVER

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

KH21ex5.7 IRSE (Unit:mm)

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Canon KH21EX5.7 manual Rotary Encoder, Ecological Design