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HDTV Portable HDxs Lenses
Canon Store: $
Four significant technologies converge to produce the HJ21ex7.5B IASE A 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.
Object Image Format
Object Image size
Focal Length Range
Focal Length Range with Extender
Angular Field of View
65.2o (H) x 39.6o (V)
3.5o (H) x 2.0o (V)
Angular Field of View with Extender
35.5o (H) x 20.4o (V)
1.7o (H) x 1.0o (V)
Maximum Relative Aperture (F-Number)
1 : 2.6 at 158mm (Ramping Characteristic)
Maximum Relative Aperture (F-Number) with Extender
1 : 5.2 at 316mm (Ramping Characteristic)
MOD From Front of Lens
MOD From Camera Image Plane
Scene Object Dimensions at MOD
5.6 cm x 3.2 cm at 158mm
Scene Object Dimensions at MOD with Extender
2.8 cm x 1.6 cm at 316mm
Size Length mm mod1
† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.