Canon EOS 10D - Digital Camera SLR Manual de instrucciones descargar pdf (Pagina 71)

Focusing

When Autofocus Fails (Manual Focusing)

Autofocus can fail to achieve focus (the focus confirmation light blinks) with certain subjects

such as the following:

(a) Low-contrast subjects (blue sky, solid-color walls, etc.).

(b) Subjects in low light.

(d) Overlapping near and far objects (animal in a cage, etc.).

In such cases, do one of the following:

1. Focus an object at the same distance as the subject and lock the focus before recomposing.

2. Set the lens focus mode switch to < MF> (or <M> on older lenses) and focus manually.

(→p.27)

Manual Focusing

Set the lens focus mode switch to <MF>

(or <M> on older lenses).

Focus by turning the lens focusing ring

until the subject is in focus in the

viewfinder.

•

If you press the shutter button halfway during manual focusing, the active AF point and

the focus confirmation light <

●

> in the viewfinder will light when focus is achieved.

•

If focus cannot be achieved with an external Speedlite’s AF-assist beam, select the

center AF point. An off-center AF point may not be able to achieve focus.

•

With USM (Ultrasonic Motor) lenses (except those not having a distance scale), you

can use the focusing ring to fine focus after focus is achieved in the One-Shot AF

mode (full-time manual focusing).

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Canon EOS 10D - Digital Camera SLR Manual de instrucciones Pagina 71