AF Area Selection Modes. Canon EOS 5DS, EOS 5DS R

AF Area Selection Modes

N

Single-point Spot AF (Manual selection)

For pinpoint focusing over a narrower area than with single-point AF (manual selection). Select one

AF point < > to focus.

Effective for pinpoint focusing or focusing overlapping subjects such as an animal in a cage.

Since Single-point Spot AF (manual selection) covers a very small area, focusing may be difficult during hand-held shooting or for a moving subject.

Single-point AF (Manual selection)

Select one AF point < S > to be used for focusing.

AF point expansion (Manual selection )

The manually-selected AF point < S > and adjacent AF points < w >

(above, below, on the left, and on the right) are used to focus. Effective when it is difficult to track a moving subject with just one AF point.

With AI Servo AF, the initial manually-selected AF point < S > must focus-track the subject first. However, it is superior to Zone AF in focusing on the target subject.

With One-Shot AF, when focus is achieved with expanded AF points, the expanded AF points < S > will also be displayed along with the manually-selected AF point < S >.

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AF Area Selection Modes N

AF point expansion (Manual selection, surrounding points)

The manually-selected AF point < S > and surrounding AF points < w > are used to focus. The AF point expansion is larger than with AF point expansion (manual selection ), so the focusing is executed over a wider area. Effective when it is difficult to track a moving subject with just one AF point.

AI Servo AF and One-Shot AF work in the same way as with AF point expansion (manual selection

) mode (p.95).

Zone AF (Manual selection of zone)

The AF area is divided into nine focusing zones for focusing. All the AF points in the selected zone are used for the automatic AF point selection. It is superior to single-point AF or AF point expansion in achieving focus, and it is effective for moving subjects.

However, since it is inclined to focus on the nearest subject, focusing on a specific target may be more difficult than with single-point AF or AF point expansion.

The AF point(s) achieving focus is displayed as < S >.

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AF Area Selection Modes N

61-point automatic selection AF

The Area AF frame (entire AF area) is used to focus. This mode is set automatically in the < A > mode.

The AF point(s) achieving focus is displayed as < S >.

With One-Shot AF, pressing the shutter button halfway will display the AF point(s) < S > that achieved focus. If multiple AF points are displayed, it means they all have achieved focus. This mode tends to focus on the nearest subject.

With AI Servo AF, you can set the AI Servo AF’s starting position with [ Initial AF pt, AI Servo

AF

] (p.128). As long as the Area AF frame can

track the subject during shooting, focusing will continue.

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AF Area Selection Modes N

When AI Servo AF mode is set with 61-point automatic selection AF, or

Zone AF (manual selection of zone), the active AF point < S > will keep switching to track the subject. However, under certain shooting conditions (such as when the subject is small), it may not be able to track the subject. Also, in low temperatures, the tracking response may become slower.

With Single-point Spot AF (manual selection), focusing with an EOSdedicated, external Speedlite’s AF-assist beam may be difficult.

If a peripheral AF point or a wide-angle lens is used, achieving focus may be difficult with an EOS-dedicated, external Speedlite’s AF-assist beam.

In such a case, use an AF point closer to the center.

When the AF point(s) light up, part or all of the viewfinder may light up in red. Also, if [ z 4: Crop/aspect ratio ] is set, the semi-transparent, masked area may light up in red. This is a characteristic of the AF point display (using liquid crystal).

In low temperatures, the AF point’s display may be difficult to see. This is a characteristic of AF point display (using liquid crystal).

With [ 2 4: Orientation linked AF point ], you can set the AF area selection mode + AF point (or only the AF point) separately for the

horizontal and vertical orientations (p.126).

With [ 2 4: Selectable AF point ], you can change the number of

manually selectable AF points (p.124).

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