What is Canon EOS iTR AF and what does it do?
Asked 10/18/2011
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I’ve seen Canon mention EOS iTR AF on some DSLR bodies. What is this feature, how does it work, and what practical benefit does it offer when focusing on subjects?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
15y ago
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Canon has introduced a new feature coined EOS iTR AF - Intelligent Tracking and Recognition Auto Focus on the Canon EOS-1D X DSLR.
EOS iTR AF is also now available (as of April, 2019) with the EOS 1D X Mark II, EOS 7D Mark II, EOS 5Ds/5Ds R, and EOS 5D Mark IV.
The camera attempts to detect the locations of faces and focus on these in the scene or alternatively it can identify subjects of a particular color such as in sporting events for example. Face detection is given the highest priority, but if this lock fails it will fall back to looking for the color information.
The default AF mode for the EOS-1D X uses phase detection AF information, but the secondary option uses the face and color detection of the iTR AF. This feature is achieved by using information from the RGB metering sensor as part of the AF system.
Originally by user4892. Source · Licensed CC BY-SA 4.0
user4892
15y ago
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Generated from our catalog & community — verify before relying on it.
Canon EOS iTR AF stands for Intelligent Tracking and Recognition autofocus. It helps the camera track subjects more effectively by using information beyond the normal phase-detect AF system.
In supported Canon DSLRs, the camera uses data from the RGB metering sensor to recognize faces and subject color. Face detection has priority; if a face can’t be maintained, the system can continue tracking based on color information instead. This is especially useful when a subject moves across different AF points, such as in sports or action shooting.
In practice, EOS iTR AF can improve subject tracking and help the camera keep focus on the intended person or subject as it moves through the frame. It’s not a separate autofocus mode so much as an added layer of subject recognition that supports Canon’s AF system.
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