HJ14ex4.3B IRSE / IASE
The HJ14ex4.3B IRSE / IASE is the widest portable HDTV lens by Canon and surpasses it's long acclaimed predecessor the HJ11ex4.7 in creative options.
المزايا
- Power Optics - superb imagery with latest optical design
- Focal range of 4.3mm to 60mm (120mm with extender)
- Crossover Technology Option - switchable between 16:9 and 4:3
- Enhanced Digital Drive technology
- Compact, robust ergonomic design
الميزات المفصلة
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Wide angle portable ENG/EFP lens
The short 4.3mm focal length provides a 96.3 degree horizontal
angle of view for the 16:9 HD image format. Combined with a focal
range that has been extended to now cover a range from 4.3mm to
60mm (and 120mm with extender) this lens offers unsurpassed
operational capabilities in a compact package of 1.99kg. The
maximum relative aperture is F1.8. Additionally, focus breathing
has been significantly reduced over its predecessor the
HJ11ex4.7B.
Minimization of monochromatic and chromatic aberrations and further
maximization of image contrast combine with improved MTF. The
relative light distribution over the mid-to-long focal lengths with
better uniformity of brightness across the image plane also
provides the higher contrast. These combinations ultimately produce
vividly clear and superb sharp HD pictures.
Optical Technologies
Newly developed high index optical glass materials and the Aspheric
Lens Elements allow improved control over chromatic aberrations and
geometric distortion especially at the very wide angle settings.
Canon's three-part Internal Focus innovation reduces changes in
aberrations when focusing to different object distances while also
exercising tight control over any tendency for focus
breathing.
Digital Technologies
New Enhanced Digital Drive technology provides precision
microcomputer control of the three servo systems for zoom, iris and
focus while also facilitating new developments in lens-camera
correction of lateral chromatic aberration.Dynamic Zoom Speed Range
can be adjusted from 0.5 seconds to 5 minutes (from wide to
telephoto extremes).
Optomechanical Technologies
Computer simulation of the optomechanical design allowed
examination of optimized anti-reflection internal barrel coatings,
and structural techniques (light blocking grooves and knife edges)
that produced greater control over harmful light reflections within
the