CANON CJ20EX7.8B 4K Lens

Brand: Canon

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  • Description
  • Features
  • Specification
Description

Canon CJ20ex7.8B IASE S - 2/3-inch Portable ENG Zoom Lens for 4K Broadcast Cameras (p/n 1507C001AA).

This lens offers a 20x zoom ratio and focal length range from 7.8mm to 156mm. It is suited well to news and sport applications, as well as documentary and serial drama use, and its high resolution makes it a suitable partner for 4K camera bodies.

Careful lens positioning and precision assembly ensures quality 4K resolution from the centre to the periphery of the image, and the lens also includes a 2x extender which even when at full zoom will give sufficient resolution for 4K.

The compactness of the lens also makes it suitable for shoulder-mount camera work.

Features
  • This lens offers a 20x zoom ratio and focal length range from 7.8mm to 156mm. It is suited well to news and sport applications, as well as documentary and serial drama use. and its high resolution makes it a suitable partner for 4K camera bodies.
  • Careful lens positioning and precision assembly ensures quality 4K resolution from the centre to the periphery of the image, and the lens also includes a 2x extender which even when at full zoom will give sufficient resolution for 4K.
  • The compactness of the lens also makes it suitable for shoulder-mount camera work.
  • Suitable for 4K
  • Edge-to Edge Sharpness at all focal length
  • 2x Extender Built-in
Specification

Mount  B4
Image Coverage  9.6 x 5.4mm
Zoom Ratio  20x
Minimum Object Distance (from image plane)  0.80m (10mm with Macro)
Approx Size (WxHxL) 169.9 x 114.4 x 230.0mm
Approx Mass  2.18kg

WITHOUT 2x EXTENDER IN USE

Focal Length 7.8 - 156mm
Maximum Relative Aperture  1:1.8 at 7.8-108mm / 1:2.6 at 156mm
Angular Field of View  63.2° x 38.2° 3.5° x 2.0°
Object Dimensions at M.O.D.(Min Object Dist.)  91.7 x 51.6cm (at 7.8mm) / 4.8 x 2.7cm (at 156mm)

WITH 2x EXTENDER IN USE

Focal Length  15.6 x 312mm
Maximum Relative Aperture  1:3.6 at 15.6-216mm 1:5.2 at 312mm
Angular Field of View  34.2° x 19.6° / 1.8° x 1.0°
Object Dimensions at M.O.D.(Min Object Dist.)  45.9 x 25.8cm (at 15.6mm) / 2.4 x 1.4cm (at 312mm)

 

HYPERACTIVE BROADCAST HAS BECOME GRAVITY MEDIA

On 31 October 2019, the four leading broadcast and production houses Gearhouse Broadcast, Hyperactive Broadcast, Input Media and Chief Entertainment owned by Gravity Media Group started trading under the brand name of ‘Gravity Media’. All Gravity Media companies around the world are making this transition and will now go to market as a single brand with a bold new look and purpose.

under 1 roof2

Gravity Media is a leading global provider of complex live broadcast facilities and production services to content owners, creators and distributors. We use the collective pull of our people and resources to capture, craft and create world-class content that inspires and excites.

We are driven by client service excellence, and we never stand still. We’re always looking and listening, keeping up with the latest broadcast innovations – or pioneering them. Above all, we channel our energy into maintaining our reputation for flawless execution, deep technical expertise, and efficient delivery.

Gravity Media is a brand-new company with a 30-year pedigree, a force to be reckoned with formed by the coming together of Gearhouse Broadcast, HyperActive Broadcast, Input Media and Chief Entertainment. Our 500 people serve clients across the sport, media, news and entertainment industries from bases in the UK, Australia, USA, France, Germany and Qatar.

At the centre of Gravity Media lie three broad categories of expertise: media services & facilitiesproduction & content; and equipment rental & sales.


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