SKU
1518B006AD

Canon KJ20x8.2B IRSD 20x 2/3” HD Telephoto Lens with 2X Extender

£4,260.00 £3,550.00
Did you find this item priced lower than £3,550.00 somewhere else? Yes

Canon KJ20x8.2B IRSD 20x 2/3” HD Telephoto Lens with 2X Extender

The KJ20x8.2B IRSD is a portable telephoto lens with extra wide angle and a built-in 2x extender that provides outstanding optical performance and value.

 

FEATURES

Widest Angle 
8.2mm Angle of View is widest angle of any lens in its class.

Outstanding Optical Performance 
New design tools, encompassing cutting-edge optical simulation and powerful 3D design technologies, combined with new optical glass materials and new optical coatings produced a novel optimization of the cost-performance ratio of this new lens. The KJ20x8.2B IRSD exhibits a high MTF at picture center that is also well-controlled out to picture extremities. The design optimization maintains that high MTF with operational adjustments of focal length and object distance. Longitudinal and lateral chromatic aberrations have been minimized as well as monochromatic aberrations like coma and astigmatism. Geometric distortion at wide angle settings is imperceptible.
 
The new optical materials and multilayer optical coatings have effectively attenuated optical artifacts such as ghosting, flare, and veiling glare, that might be stimulated by strong light sources in the scene (for example, sun in daytime and car headlights at nighttime).

Newly Developed Advanced Drive Unit 
Various companies have rolled out cameras with lens aberration correction functions in recent years. For this reason, the KJ20x8.2B IRSD is fitted with a camera-communication interface to support these separate aberration correction functions.*1
 
The KJ20x8.2B IRSD's zoom can travel end to end in 1.0 seconds, an improvement over the KJ20x8.5B KRS's speed. The servomotor has a noise-suppressing construction to ensure there is no corresponding increase in noise. The drive unit features the same ergonomically designed shape of the KJ20x8.5B KRS and others in the family that users have loved for its handling and grip.
 
On the newly developed advanced drive unit, the Memo switch, which sets specific zoom positions for the Shuttle Shot function, has been changed to a push switch. On previous drive units, to memorize the zoom position, the operator had to adjust its position by a volume switch. The memo switch enables more reliable Shuttle Shot setup in the field where more consistent functioning of the controls is required.
 
*1. Check with the camera manufacturer to see whether the KJ20x8.2B IRSD is compatible with the camera's aberration correction functions. 

 

Long portable ENG lens

The new KJ20x8.2B IRSD is portable 2/3” HD telephoto lens specifically designed to support low-cost image acquisition systems for a wide range of applications and users, from broadcast ENG to professional freelance HD shooters.

At 8.2mm, the new KJ20x8.2B IRSD is also Canon’s widest lens in the affordable 20x zoom class, and it covers a generous range of focal lengths, particularly when combined with its built-in 2x extender expanding its 8.2mm-164mm focal length to 16.4mm-328mm. MOD is 0.9M and the lens also comes equipped with a macro to allow closer subjects up to 10mm from the front of lens, it also has strong rugged build qualities.

The servomotor has a noise-suppressing construction to ensure there is no corresponding increase in noise. On the newly developed advanced drive unit, the Memo switch, which sets specific zoom positions for the Shuttle Shot function, has been changed to a push switch. The memo switch enables more reliable Shuttle Shot setup in the field where more consistent functioning of the controls is required.

The outstanding optical performance of Canon’s new KJ20x8.2B IRSD portable HD lens is the result of the company’s world-leading design tools, including cutting edge optical simulation and 3D design technologies, novel optical glass materials and coatings and extraordinary dispersion glass. 

Together, these technologies and materials have produced an outstanding combination of cost-effectiveness and performance in the KJ20x8.2B IRSD. The lens has minimised axial and lateral chromatic aberrations, coma aberrations and geometric distortion. The new optical materials and multi-layer optical coatings used in the lens effectively lessen the ghosting, flare and veiling glare that might be stimulated by strong light sources - sun in the daytime and car headlights at night time.

The KJ20x8.2B also has a high MTF (modulation transfer function) at the picture centre that is well controlled right out to the picture extremities. This high MTF is sustained even when focal length and object distance are being adjusted. The KJ20x8.2B IRSD ’s optical performance is well-balanced for both near and distant subjects, and its rendering of distant subjects at wide angles – frequently needed for landscape and cityscape shots – surpasses previously available lenses in this price range.

 

SPECIFICATIONS

Product

Product Category

ENG Lens

Product Series

KJ20x8.2B IRSD
 

Image Composition

Object Image Format

2/3-inch

Aspect Ratio

16:9

Object Image size

9.59 mm (H) x 5.39 mm (V)

Zoom Ratio

20 X

Focal Length Range

8.2-164mm

Focal Length Range with Extender

16.4-328mm

Angular Field of View

60.7o×36.5o at 8.2mm
3.4o×1.9o at 164mm

Angular Field of View with Extender

32.6o×18.7o at 16.4mm
1.7o×0.9o at 328mm
 

Optical Brightness

Maximum Relative Aperture (F-Number)

1:1.9 at 8.2-115.4mm
1:2.7 at 164mm (Ramping Characteristic)

Maximum Relative Aperture (F-Number) with Extender

1:3.8 at 16.4-230.8mm
1:5.4 at 328mm (Ramping Characteristic)
 

Scene Composition

MOD From Front of Lens

0.9m (10mm with Macro)

Scene Object Dimensions at MOD

98.2×55.2cm at 8.2mm
5.0×2.8cm at 164mm

Scene Object Dimensions at MOD with Extender

49.1×27.6cm at 16.4mm
2.5×1.4cm at 328mm

Physical Attributes

 

Width

163.3mm

Height

103mm

Length

208mm

Weight

3.13lbs (1.42kg)