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Canon Dual Pixel CMOS AF technology
Ralf Jurrien : July 17th 2013 - 09:45 CET
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CanonCanon Dual Pixel CMOS AF technology for EOS 70D : Canon Inc., developed Dual Pixel CMOS AF, an innovative new autofocus technology for the EOS 70D Digital SLR camera. Dual Pixel CMOS AF, a phase-detection AF technology conducted directly on the image sensor plane, employs a CMOS sensor on which all of the effective pixels are able to perform both imaging and phase-detection AF simultaneously to achieve dramatically improved AF performance over prior EOS cameras during Live View and video shooting. An increasing number of users no longer rely exclusively on the viewfinder when shooting, but rather view the camera’s LCD monitor when using the Live View function to capture still images and when shooting video.

Dual Pixel CMOS AF

Dual Pixel CMOS AF
Canon’s newly-developed Dual Pixel CMOS AF is an innovative new image-plane phase-detection AF technology that employs a CMOS sensor on which all of the effective pixels are able to perform both imaging and phase-detection AF simultaneously. Each individual pixel (the smallest structural unit capable of outputting an image signal) on the CMOS sensor incorporates two independent photodiodes (elements that transform light into electrical signals) which output signals that can be used for both imaging and the phase-detection AF. When using the Canon EOS 70D Digital SLR camera’s Live View function, the technology enables autofocusing with ease, flexibility, speed and accuracy similar to shooting through the viewfinder, enabling sharp focus to be obtained across a wide shooting area through phase-detection AF until final focus is achieved. Compared with earlier generations of Canon’s image-plane phase-detection AF, Dual Pixel CMOS AF realizes shorter focusing times, outstanding tracking performance and smoother autofocusing during video shooting. And, because Live View shooting can be used in a manner similar to using the camera’s viewfinder, the fast and smooth AF performance allows users to concentrate more attention on the subject and composing the photo when shooting.

CMOS AF

Canon EOS 70D DSLR
Compared with the EOS Rebel SL1, which employs Hybrid CMOS AF II, the Canon EOS 70D Digital SLR camera (scheduled to go on sale in September 2013), which is the first camera to feature Dual Pixel CMOS AF, not only achieves AF speed that is approximately 30 percent faster but also delivers improved Movie Servo AF tracking for continuously smooth focusing during video shooting, even when filming quickly moving subjects.

Canon EOS 70D

Canon Dual Pixel CMOS AF technology
Because the outstanding AF performance of Dual Pixel CMOS AF is made possible with 1035 models of EF lenses (including many earlier models and models available outside of Japan), users can enjoy a wide range of photographic endeavors achievable with various lenses. Recognizing great potential for the application of this technology across diverse product categories, Canon aims to promote its development efforts in the field of AF technology, targeting further advances to contribute to expanding the world of photographic expression.
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