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Canon KH21ex5.7 IRSE 1/2 HDgc-Tele-lens-incl-2x-ext

Canon KH21ex5.7 IRSE 1/2 HDgc-Tele-lens-incl-2x-ext

Code:KH21ex5.7 IRSE Condition: New
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Corresponding to the digital High Definition broadcasting and diversity of HDTV equipment & Canon has added a new series to its HDTV lens line up & the HDsc 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.
See more imformation from our FAQ.

Enhanced Digital Drive
The KH21ex5.7 & KH16ex5.7 and the KH10ex3.6 carry 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.

Shuttle Shot
      By memorizing any two focal lengths & the digital drive can automatically “shuttle” between the two points & moving in either direction.

Framing Preset
    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.

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.

Equipped with Canon's original Rotary Encoder Device
      Canon is introducing a new series with a new enhanced digital drive unit which 16 bit resolution Rotary Encoder Devices has built in.

Lens Model Number KH21ex5.7B IRSE
Zoom Ratio 21x
Built-in Extender 1.0x 2.0x
Range of Focal Length
(with Extender)
5.7~120mm 11.4~240mm
Maximum Relative Aperture
(with extender)
1:1.4 at 5.7~86mm
1:1.95 at 120mm
1:2.8 at 11.4~172mm
1:3.9 at 240mm
Angular field
of view
(with Extender)
16:9
Aspect Ratio
(9.6 x 5.4mm)
62.9° x 38.0°
3.3° x 1.9°
31.5° x 19.0°
1.7° x 0.9°
Minimum Object Distance (M.O.D.) 0.8m (10mm with Macro)
Object Dimensions at M.O.D.
(with Extender)
16:9
Aspect Ratio
(9.6 x 5.4mm)
92.2 x 51.9cm at 5.7mm
4.3 x 2.4cm at 120mm
46.1 x 26.0cm at 11.4mm
2.2 x 1.2cm at 240mm
Approx.Size (W x H x L) 169.4 x 111.9 x 217.5mm
Approx.Mass 1.79kg

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