CANON YJ20x8.5B SDTV Portable Pro-Video Lens

YJ20x8.5B IRS

Canon SDTV Lenses

Canon YJ20x8.5B IRS

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Box Type Studio/Field Lens
 SDTV Lens
J35ex11B IASD
J35ex15B IASD
YJ20x8.5B IRS
YJ20x8.5B KRS
Remote Control Lens
Remote Control Pan-Tilt System
Cinema Lens

 CANON YJ20x8.5B SDTV Portable Pro-Video Lens

YJ20x8.5B IRS Hyper Standard Pro-Video Lens

Canon is proud to introduce the YJ20x8.5B, which has emerged from Canon's top selling YJ19x9B, also known as the Pro-Video Industry Standard Lens. The YJ20x8.5B tops many Pro-Video standard lenses by offering the widest focal length (8.5mm), the highest zoom ratio (20x), and the fastest zoom speed (1.2 sec from wide end to tele end). In addition to having Canon's innovative Internal Focus (IF) Technology and exclusive Shuttle Shot Function, its new ergonomically designed drive unit accounts for its ideal balance and comfort.

Canon YJ20x8.5B IRS

Product Code: YJ20x8.5B IRS

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Main Features
· IF Technology
Pro-Video camera people can take advantage of Canon's breakthrough technology that broadcasters have enjoyed for years-Internal Focus (IF).
Internal Focus technology was pioneered by Canon and first introduced into their Broadcast ENG lenses.

It has since become the industry-standard. Internal Focus is a system where the front end of the lens remains stationary and does not rotate. Only internal elements move when focusing.

Internal Focus enhances optical performance and provides several user benefits: - IF improves chromatic aberrations, thus increasing resolution.
- IF is not sensitive to change in object distances.
- IF decreases flare by use of square food.
- IF enables a higher level of creative filter work.
- Even heavy optical accessories attached at the end of the Lens does not affect the focusing operation.

· New Ergonomic Drive Unit
The new ergonomically designed Drive Unit achieves an ideal balance and comfort by having it tilt to an angle. In addition, the size of the unit has been minimized to comfortably fit in the palm of the hand. Overall, it improves the feeling of unity between the user and the lens.

· Shuttle Shot Switch
The Shuttle Shot function ON/OFF switch can also be allocated to either the VTR or RET switches by means of a DIP switch.

· Ribbed Surface
The ribbed surface on the bottom of the Drive Unit provides better handling control.

· Grip Support
Allows a user to securely grip the Drive Unit without pressing on the VTR or Shuttle Shot buttons.

General Specifications  

Lens Model Number YJ20x8.5B IRS
Zoom Ratio 20x
Built-in Extender 2.0x
Range of Focal Length
(with Extender)
Maximum Relative Aperture
(with extender)
1:1.8 at 8.5~113.3mm
1:2.7 at 170mm
1:3.6 at 17~226.7mm (2.0x)
1:5.4 at 340mm (2.0x)
Angular field of view
(with Extender)
4:3 Aspect Ratio
(8.8 x 6.6mm)
54.7° x 42.4° at 8.5mm
3.0° x 2.2° at 170mm
29.0° x 22.0° at 17mm (2.0x)
1.5° x 1.1° at 340mm (2.0x)
Minimum Object Distance (M.O.D.) 0.9m (10mm with Macro)
Object Dimensions at M.O.D.
(with Extender)
4:3 Aspect Ratio
(8.8 x 6.6mm)
85.2 x 63.9cm at 8.5mm
4.4 x 3.3cm at 170mm
42.6 x 32.0cm at 17.0mm (2.0x)
2.2 x 1.7cm at 340mm (2.0x)
Approx.Size (W x H x L) 163.3 x 103.0 x 195.4mm
Approx.Mass 1.39kg (3.06lbs)
Macro Yes
Shuttle Shot Yes

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