Canon CJ20ex7.8B IASE S Brochure
1.8” (44.5mm)
5.4” (137.7mm)
6.7” (169.9mm)
4.5” (114.4mm)
115
1.6”
(41.6mm)
2.3”
(59.5mm)
1.4”
(35.6mm)
2.1” (53.9mm)
45°
AUX SWITCH
MEMO SWITCH
RETURN SWITCH
ZOOM OPERATION SWITCH
IRIS OPERATION CHANGE-OVER SWITCH
MOMENTARY IRIS AUTO SWITCH
INFORMATION DISPLAY On/Off SWITCH
INFORMATION DISPLAY
DIGITAL FUNCTION SELECTOR
VTR SWITCH
F.B. ADJUSTING LOCK SCREW
INDEX MARK
LENS CABLE
ZOOM SPEED VOLUME
BUILT-IN EXTENDER
1.0x
2.0x
FOCAL LENGTH
7.8 - 156mm
15.6 - 312mm
ZOOM RATIO
20x
MAXIMUM RELATIVE APERTURE
1:1.8 at 7.8 - 108mm
1:2.6 at 156mm
1:3.6 at 15.6 - 216mm
1:5.2 at 312mm
ANGULAR FIELD OF VIEW
63.2°× 38.2° at 7.8mm
3.5°× 2.0° at 156mm
34.2°× 19.6° at 15.6mm
1.8°× 1.0° at 312mm
M.O.D.
0.80 Meter (10mm with Macro)
OBJECT DIMENSIONS AT M.O.D.
91.7×51.6cm at 7.8mm
4.8×2.7cm at 156mm
45.9×25.9cm at 15.6mm
2.4×1.4cm at 312mm
APPROX. SIZE (W x H x L)
6.7 x 4.5 x 9.1 in
(169.9 x 114.4 x 230 mm)
APPROX. WEIGHT
4.81 lbs
(2.18kg)
SUPERB OPTICAL PERFORMANCE
The lens optimizes all of the optical parameters that combine to produce
amazing overall image performance – namely, sharpness, contrast, color
and tonal reproduction. At the same time the optical design significantly
minimizes the various monochromatic and chromatic optical aberrations
that can mar an image.
amazing overall image performance – namely, sharpness, contrast, color
and tonal reproduction. At the same time the optical design significantly
minimizes the various monochromatic and chromatic optical aberrations
that can mar an image.
SUPERB 4K OPTICAL PERFORMANCE,
EVEN WITH THE BUILT-IN 2X EXTENDER
With its high-grade optical components and precision optomechanical
assembly, the lens maintains 4K optical performance when the built-in
2x extender is switched in.
assembly, the lens maintains 4K optical performance when the built-in
2x extender is switched in.
APPLICABILITY AND OPERABILITY
IDEALLY SUITED TO 4K SHOOTING
This long 20x zoom lens has a remarkably low weight of 2.18 kg – a
combination that greatly empowers all forms of field production. The
now well-established digital drive unit adds to that empowerment by
providing precision operational control and also programmability options
for the same. The focus rotation angle has been carefully designed to
further support rapid focusing of distant subjects.
combination that greatly empowers all forms of field production. The
now well-established digital drive unit adds to that empowerment by
providing precision operational control and also programmability options
for the same. The focus rotation angle has been carefully designed to
further support rapid focusing of distant subjects.
COMPATIBILITY WITH HD LENS SYSTEMS
The standard zoom and focus controller systems currently used with
Canon HD lenses are fully compatible with this new 4K lens*. The latest
digital drive units that have proven to be so popular with users of Canon
HD lenses are deployed with this new lens. Three high-performance
encoders (which read out high-accuracy positional information of zoom,
focus and iris) are featured, and Connectors provided on the digital drive
unit deliver precision digital information to support virtual systems.
When this 4K lens is used with standard HDTV cameras, there is higher
image sharpness and minimized optical aberrations.
Canon HD lenses are fully compatible with this new 4K lens*. The latest
digital drive units that have proven to be so popular with users of Canon
HD lenses are deployed with this new lens. Three high-performance
encoders (which read out high-accuracy positional information of zoom,
focus and iris) are featured, and Connectors provided on the digital drive
unit deliver precision digital information to support virtual systems.
When this 4K lens is used with standard HDTV cameras, there is higher
image sharpness and minimized optical aberrations.
The lens has a high zoom ratio of 20x that extends from the wide end of
7.8 mm to an impressive tele end of 156 mm, covering a popular zooming
range that meets multiple applications.
7.8 mm to an impressive tele end of 156 mm, covering a popular zooming
range that meets multiple applications.
HIGH ZOOM RATIO AND FREQUENTLY USED
FOCAL LENGTH
* The FPM-420D focus unit is not supported.
CANON 4K UHDxs CJ20e 7.8B ZOOM LENS
This portable 4K lens offers an overall optical performance that will support a broad spectrum of program
production genres for UHD broadcast television. Featuring a 20x zoom ratio, the CJ20ex7.8B 4K lens can
achieve panoramic vistas and finely detailed close-ups that are central to evocative image making and powerful
storytelling when captured in 4K UHD.
production genres for UHD broadcast television. Featuring a 20x zoom ratio, the CJ20ex7.8B 4K lens can
achieve panoramic vistas and finely detailed close-ups that are central to evocative image making and powerful
storytelling when captured in 4K UHD.
SPECIFICATIONS
DIMENSIONS