Canon Cinema EOS C100 Dual Pixel Upgrade Explained
By| March 7, 2014
CPN has posted an article explaining the dual pixel technology upgrade for the Cinema EOS C100 camera.
How does dual pixel CMOS AF work?
Dual Pixel CMOS AF is a sensor-based, phase-detection autofocus (AF) technology that’s designed to provide smooth, high-performance continuous focus in movies. It is a unique, Canon-developed technology, ideal for fast and accurate autofocus, helping filmmakers to create stunning footage which maximises the creative options offered by fast lenses and shallow depth-of-field.
The EOS C100 camera with Dual Pixel CMOS AF technology features a CMOS sensor that consists of an array of pixels that each feature two separate photodiodes. By continuously comparing their outputs during AF Mode, phase-difference autofocus helps to ensure non-blurred images and smooth focus transitions even when the subjects and/or camera are moving. The new feature places a high priority on maintaining sharp focus while, providing a natural, smooth autofocus movement with selected Canon EF lenses that offer even smoother and quieter operation.
After this modification, the EOS C100 camera’s Continuous AF function active area represents 20% of the image vertically and 25% horizontally, yielding a very large, centrally located autofocus zone. The AF Lock mode allows you to set focus and hold it, allowing you to change framing while maintaining the original point of focus.