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KT17ex4.3B IRSE

HDTV Portable HDgc Lenses

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  • Optical Technologies
    Newly developed optical glass materials each having unique dispersion characteristics allowed improved control over chromatic aberrations and geometric distortion. Lens element surface accuracy has been improved two-fold over those in the earlier HDgc lenses contributing to the improved MTF performance New Multilayer Optical Coatings combined with new deposition processes produce an improved optical contrast ratio Three-part Internal Focus is a Canon design innovation that reduces changes in aberrations when focusing to different object distances while also exercising improved control over any tendency for focus breathing New and more powerful computer design tools facilitated a greater degree of optimization of multiple optical variables in the lens design

  • Control Technologies
    Enhanced servo system called Shuttle Shot that adds value-added creativity to handheld acquisition systems Advanced Drive technology ? encompasses servo control that allows the operator to precisely zoom between tow pre-programmed zoom positions Maximum Zoom speed is 1.2 seconds over entire range

  • Optomechanical Technologies
    Extensive use of 3D CAD-CAM design facilitated a design that paid high attention to operator comfort and attendant lowering of fatigue during protracted shooting: Special Magnesium alloy body for light weight and exceptional durability Computer simulation of the optomechanical design allowed examination of optimized anti-reflection internal barrel coatings, and structural techniques (light blocking grooves and knife edges) that produced greater control over harmful light reflections within the lens barrel that can be stimulated by strong light sources

  • Ecological Design
    All contemporary Canon lenses avoid the use of materials and substances potentially harmful to the environment. Lead has been removed from all optics and other identified substances from all components comprising the composite lens system.

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Product Category

ENG Lens

Product Series

KT17ex4.3B IRSE

Image Composition

Object Image Format

1/3 Inch

Aspect Ratio

16:9 Aspect Ratio

Object Image size

6.97 mm (H) x 3.92 mm (V)

Zoom Ratio


Focal Length Range


Focal Length Range with Extender


Angular Field of View

33.8° (H) x 19.4° (V) At 5.0mm2.1° (H) x 1.2° (V) At 100mm

Optical Brightness

Maximum Relative Aperture (F-Number)

1:1.4 at 4.3mm~73mm

Maximum Relative Aperture (F-Number) with Extender

1:2.8 at 8.6mm~146mm

Scene Composition

MOD From Front of Lens

0.6 Meter (10mm with Macro)

Scene Object Dimensions at MOD

66.9 cm x 37.6 cm at 4.3mm4.1 cm x 2.3 cm at 73mm

Scene Object Dimensions at MOD with Extender

33.5 cm x 18.8 cm at 8.6mm 2.1 cm x 1.2 cm at 146mm

Physical Attributes

6.3in (159.3mm) 4.2in (106.6mm) 7.8in (197.3mm) 3.26 lbs (1.48kg)


6.3in (159.3mm)


4.2in (106.6mm)

Size Length mm mod1

7.8in (197.3mm)


3.26 lbs (1.48kg)



† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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