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User Manual for Canon CJ20EX7.8B 4K UHD Lens Click to enlarge the picture
Contents of the user manual for the Canon CJ20EX7.8B 4K UHD Lens
- Product category: Professional Lenses Canon
- Brand: Canon
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Canon Professional Lenses
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User manual for the Canon CJ20EX7.8B 4K UHD Lens contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Canon product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Canon user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Canon product will considerably shorten its lifespan!
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Product description The Canon CJ20EX7.8B is a portable 20x zoom lens for professional 2/3" video cameras. Designed for 4K image capture, the CJ20EX7.8B provides optimal reproduction for shots ranging from establishing vistas to revealing closeups. This model can be used in a variety of production applications, including narrative projects and broadcast sports coverage. The focal-length range is 7.8-156mm with a minimum object distance of 2.6'. The lens maintains its 4K performance even when using the built-in 2x extender (for a maximum range of 15.6-312mm). The lens is designed with aspheric elements to minimize monochromatic and chromatic aberrations, even at wide focal lengths. It has a focus barrel with 170° of rotation, enabling quick, accurate focus pulls. This lens works with standard Canon-compatible zoom and focus control systems. The CJ20EX7.8B's digital drive unit features three highly accurate FIZ (focus/iris/zoom) data encoders which can be connected to support virtual/compositing systems. The drive unit's encoder does not require initialization upon powering up, enabling a quick shooting start. Weighing under five pounds, the CJ20EX7.8B's center of gravity is closer to the lens mount for better balance, and reduces stress on the operator's hands. For easier operating, this zoom also features a Basic Mode with a simplified display. Key Features - Optically designed to minimize monochromatic and chromatic aberrations; includes aspheric elements
- High 20x zoom ratio covers a popular range (7.5-156mm) used in various applications
- Maintains 4K optical performance even when using the built-in 2x extender
- Suitable for 4K field shooting with a lightweight form factor, a digital drive for precision control, and 170° focus barrel rotation for rapid focus pulls
- Compatible with standard Canon zoom and focus control systems FIZ (focus/iris/zoom)
- The digital drive's encoder supports metadata output for virtual/compositing systems; the encoder does not require initialization, saving time at start up
In the Box Canon CJ20EX7.8B 4K UHD Lens Lens Hood Front Lens Cap Rear Lens Cap Limited 1-Year Warranty Table of Contents
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Technical parametersCanon 7.8-156mm Specs | Sensor Compatibility | 2/3" CCD (16:9) | | Focal Length | 7.8 to 156mm
With Extender: 15.6 to 312mm | | Built-In Extender | None | | Zoom Ratio | 20x | | Angle of View | Wide: 63.2 x 38.2° (H x V)
Tele: 3.5 x 2° (H x V)
With 2x Extender
Wide: 34.2 x 19.6° (H x V)
Tele: 1.8 x 1° (H x V) | | Maximum Aperture | f/1.8 to 2.6
With Extender: f/3.6 to 5.2 | | Focus Type | Servo | | Iris Type | Servo | | Minimum Object Distance | 2.6' / 800 mm
Macro: 0.4" / 10.2 mm | | Dimensions | 9.1 x 6.7 x 4.5" / 230.0 x 169.9 x 114.4 mm (L x W x H) | | Weight | 4.8 lb / 2.2 kg |
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