Canon HJ17ex7.6B IRSE A Opuscolo e specifiche - Pagina 2

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HJ17e

7.6B

In recent years, demand for HD production has steadily expanded to encompass a broad

variety of program genres. Under such circumstances, the HJ17ex7.6B has seen a

worldwide rise in popularity as a standard HD lens having high performance and ease of

operation.

The HJ17ex7.6B is a lens whose central design criteria were low weight and small

physical size to support greater mobility especially for HD newsgathering. It also

provides a short MOD of only 0.56m in response to a strong market request. With its high

optical imaging qualities the HJ17ex7.6B is distinguished within the HDxs lens series by a

high price performance ratio that facilitates many forms of HD program origination.

A newly developed digital drive-unit further streamlines the lens ergonomics and ease of

operation that empowers camera operator shooting flexibility.

(New drive is loaded with the lens that has 'A' at the end of its model name such as

'IRSE A', 'IASE A'.)

Main Features

Realization of Miniaturization and Weight Reduction

The new design achieved a reduction in size that produced a total length

of 206.4mm while also reducing the weight of the lens to 1.60kg (IRSE A

type) which is crucial to more mobile shooting. Attention to the lens front

end design in the form of an optical port diameter of only 82mm and a hood

reduced in size so as to not occlude the camera operators viewing of the

scene while shooting, further contribute to the dynamic shooting capabilities of

the lens.

Short Minimum Object Distance of 0.56m

By reducing the minimum object distance to 0.56m the lens can be better utilized within confined

spaces allowing objects to be effectively imaged at short distances while operating with a wide angle

of view facilitated by the minimum 7.6mm focal length. Design improvements have lowered optical

aberrations at the wider angle and open aperture settings.

High Optical Performance

Accumulated design experiences allied with advances in optical technologies and manufacturing

techniques have contributed to a higher level of overall imaging performance in the HJ17ex7.6B

lens. In addition to providing a wider field of view some chromatic and monochromatic aberrations

have been reduced. Specifically these include a lowering of longitudinal chromatic aberration at

the longer focal lengths, and curtailment of spherical and comatic aberrations. Adoption of new

optical materials also afforded a reduction in curvature of field. The lens focusing system has also

been improved over the conventional 2-group inner focus in terms of a shorter MOD and improved

resolution at the picture extremities especially over the middle to telephoto focal range.

Improved Operability & Reduced Operator Fatigue

Coupled with innovations in optical performance, is a totally new design of the digital drive unit.

Refined by long-term market research and worldwide experience, Canon mobilized the latest in 3D CAD-CAM design to significantly improve

the human tactile interface to the control of zoom, iris, and focus. Here are some results of Canon's research:

Reduced Physical Stress

Improved Ease of Operation

By reducing the width of the drive unit, the palm of

The spacing between the focus ring and drive unit

the camera operator's hand is positioned closer to

has been changed to avoid accidental interference

the optical axis, thus reducing the degree of arm

with the drive unit while manipulating the focus

bend which in turn lessens physical stress during

control.

prolonged shooting.

Light Weight and Compact Body

Short M.O.D. 0.56m

Ergonomic Design

The size and curvature size have been optimized to

more comfortably fit in the palm of the operator's

hand (a). Newly developed coatings improve the

tactile interface between the user and the drive unit

(b) together with the new Rubber Grip Support (c).

Expand Freedom in HD Image Capture with Canon's Compact HD Lens

Short M.O.D. 0.56m (10mm with Macro)

Enhanced Digital Drive Unit

Information

Display

Zoom Speed

Volume in New

Location

New Rubber

Grip Support

The incorporation of miniature 16-bit, high resolution

Rotary Encoder Devices into the new enhanced digital

drive unit, has extended the features of the HJ14x to

include:

• Precision control of all lens operations

• Precise digital repeatability of zoom, focus and iris

control that support innovative image creation

• Simple and direct digital integration into virtual studio

systems

• Precision zoom control over a total speed range of 0.5

sec. to more than 5 min.

Moreover, Canon's unique Information Display provides

easy, precise customization of the enhanced digital

functions.

Enhanced Digital Functions

Shuttle Shot

By memorizing any two focal lengths, the Digital Drive

Starting Point

can automatically "shuttle" between the two points,

moving in either direction.

Frame Preset

An angle of view can be preset in either of two memories

and the lens will zoom at the highest speed or in a preset

zoom speed to the preset position by pushing a simple

Starting Point

button.

Speed Preset

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.

Zooming in same speed

SPECIFICATIONS

HJ17ex7.6B

16:9

Built-in extender

1.0×

Zoom Ratio

Range of Focal Length

7.6 130mm

15.2 260mm

Maximum Relative

1:1.8 at 7.6 97.5mm

1:3.6 at 15.2 195mm

Aperture

1:2.4 at 130mm

1:4.8 at 260mm

64.6

×39.1

at 7.6mm

35.1

×20.1

Angular Field of View

4.20

×2.40

at 130mm

2.10

×1.20

Minimum Object Distance (M.O.D)

65.4×36.8cm at 7.6mm

32.7×18.4cm at 15.2mm

Object Dimensions at M.O.D

4.00×2.30cm at 130mm

2.00×1.20cm at 260mm

Approx. Size

Approx. Mass (IRSE A / IASE A)

HJ17ex7.6B IRSE A

Zoom: Servo / Manual

Focus: Manual

HJ17ex7.6B IASE A

Zoom: Servo / Manual

Focus: Servo / Manual

Newly Designed Ergonomic Drive Unit

Dynamic Zoom Speed Range

(0.5sec-5min from wide end to tele end)

Low-Weight, High-Mobility

Exceptional High Optical Performance High MTF, Minimized Chromatic

Aberrations and Innovative Countermeasures against Ghosting and Flares

Preset Position

Starting Point

Information Display

Frame 1

Frame 2

4:3

SWITCHABLE 4:3

2.0×

1.0×

1.2×

17×

6.3 107mm

7.6 130mm

15.2 260mm

1:1.8 at 6.3 96.3mm

1:1.8 at 7.6 97.5mm

1:3.6 at 15.2 195mm

1:2.0 at 107mm

1:2.4 at 130mm

1:4.8 at 260mm

at 15.2mm

60.1

×46.9

at 6.3mm

50.7

×39.1

at 7.6mm

26.6

×20.1

at 260mm

3.90

×2.90

at 107mm

3.20

×2.40

at 130mm

1.60

×1.20

0.56m (10mm with Macro)

59.9×44.9cm at 6.3mm

49.1×36.8cm at 7.6mm

24.6×18.4cm at 15.2mm

3.70×2.80cm at 107mm

3.10×2.30cm at 130mm

1.60×1.20cm at 260mm

W×H×L=159.3×106.6×206.4mm

1.60Kg (3.53lbs) / 1.68Kg (3.71lbs)

2.0x Extender

2.4×

at 15.2mm

at 260mm