About the AF Sensor

The camera’s AF sensor has 61 AF points. The illustration below shows the AF sensor pattern corresponding to each AF point. With f/2.8 or larger maximum aperture lenses, high-precision AF is possible at the viewfinder center.

Depending on the lens attached to the camera, the number of usable AF points and AF pattern will differ. For details, see pages 79 to 84.

Diagram

Cross-type focusing: f/4 horizontal + f/5.6 vertical

 

Cross-type focusing:

 

f/5.6 vertical + f/5.6 horizontal

f/5.6 vertical

Dual cross-type focusing:

f/2.8 right diagonal + f/2.8 left diagonal

focusing

f/5.6 vertical + f/5.6 horizontal

 

The focusing sensor is geared to obtain higher precision focusing with f/2.8 or larger maximum aperture lenses. A diagonal cross pattern makes it easier to focus subjects that may be difficult to focus. It covers the five vertical AF points at the center.

The focusing sensor is geared to obtain high-precision focusing with f/4 or larger maximum aperture lenses. Since it has a horizontal pattern, it can detect vertical lines.

The focusing sensor is geared for f/5.6 or larger maximum aperture lenses. Since it has a horizontal pattern, it can detect vertical lines. It covers three columns of AF points at the viewfinder’s center.

The focusing sensor is geared for f/5.6 or larger maximum aperture lenses. It can detect horizontal lines and covers all 61 AF points in a vertical pattern.

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