I put together a short primer because there are new features that are linked together that new users should know about and there is a lot of information to absorb. I’m not suggesting what anyone should use these settings. You should explore these further.
iTR – Intelligent Tracking and Recognition
It is new to the 7D2 and does affect AF area selection modes. See next section. The 1Dx has this feature as well. The 5D3 dos not have it.
ITR executes AF by recognizing faces and colors. This can be located on the AF4 (purple menus) screen and cab be enabled or disabled.
In AI Servo mode, the camera remembers the color at the position it is focused on first, then continues to track and focus the subject switching AF points to track that color.
In one-shot AF mode iTR basically looks for faces.
The manual states that when activated it will take longer to acquire focus. I’m not sure if a person could even tell as AF happens in milliseconds. It also states that if a face is too small in the frame it may have trouble finding it.
AF Area Selection Modes
1. First there the standard single point and spot focus point modes.
2. Followed by two expansion point modes to choose from.
- the first one enables 5 AF points
- the second one enables 9 AF points
NOTE: All above AF points are active at all times. They do not switch on and off while tracking.
3. The 3 zones.
- zone – enables 12 AF points.
- large zone – enables the entire centre or 2 outside clusters
- All 65 points
NOTE: All above AF points are not active at all times in the zone grouping and 65 point. They will switch on and off while tracking.
If iTR is enabled (on the AF4 menu screen) it will activate in "all 3" zones. So you may want to keep this in mind because if you go from expansion to zone, it not only activates iTR but the AF tracking characteristics change as well.
Awesome-- thanks for that