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  CANON HJ21EX7.5BIRSE




 
List Price: $34,200.00
Our Price: $29,995.95


Description Technical Specs
 
The Canon HJ21ex7.5B is a production portable lens having the widest field of view among the standard telephoto series of lenses. It is a replacement for the highly popular HJ21ex7.8B lens. It a strategic member of the family of seven HD portable EFP lenses offered by Canon that collectively offers an unusually broad range of creative options.

This particular lens was optimized for the highest EFP performance. Its relatively large input section includes innovative optical compensation to reduce focus breathing to an extremely low level. It is intended for producers and broadcasters having as their foremost priority a long focal length capability, wide-angle field of view, and exceptional optical performance. This has been achieved in a modest 5.65 lbs overall package. The optional flexibility of Canon’s Crossover aspect ratio switching system makes it a superb performer for both 16:9 widescreen and standard 4:3 image formats.
Features
Four significant technologies converge to produce the HJ21ex7.5B portable HD production lens system that has been tailored to partner with today’s highest performing HDTV portable cameras and camcorders:

Optical Technologies – newly developed optical materials combined with the very latest lens element design innovations and multilayer coatings – that produce an unsurpassed pristine imaging system for the most discerning production team. The e-HDxs logo identifies the deployment of these technologies in the lens.


  • Power Optics – speaks to the combination of specialized materials, contemporary optical design, and multilayer coatings that produce the superb imagery
  • Internal Focus – a Canon design innovation that uses a floating optical system to better control chromatic aberrations
  • Crossover Technology – switchable operation between 16:9 and 4:3 aspect ratio imagery
Digital Technologies – new third-generation enhanced digital servo systems using Canon-developed 16-bit optical rotary encoder devices introduce entirely new value-added creativity to handheld acquisition systems
  • Enhanced Digital Drive technology – encompasses a microcomputer driven servo control that embodies position memory and user-defined digital functionality to significantly empower the camera operator charged with creative shaping of the image presented to the camera sensors
  • 16-bit rotary encoder for aperture control reports to the associated camera Iris control system (10-bit compatibility)
  • Maximum Zoom speed is 0.5 seconds and Focus is 1.5 seconds
Mechanical Technologies – ergonomic mechanical design that produced this HD lens having the same size and weight as its SDTV predecessor
  • Compact digital servo drive unit is mounted to the lens at a 12.5 degree angle for comfort and balance
  • Magnesium alloy body for light weight and exceptional durability
Ecological Design – All contemporary Canon lenses avoid the use of materials and substances potentially harmful to the environment. Lead has been removed from all optics and other identified substances from all components comprising the composite lens system.