Canon EOS 1D Instructions Manual

Also see for EOS-1D: Instruction manual Instruction manual Instruction manual Owner's manual Tips and techniques

Contents

Canon EOS 1D Instructions Manual Manual pdf 73 page image

73Using Autofocus (AF)3When Autofocus Fails (Manual Focusing)Autofocus can fail to achieve focus (the focus confirmation light blinks) with certain subjectssuch as the following:(a) Low-contrast subjects (blue sky, solid-color walls, etc.).(b) Subjects in low light.(c) Extremely backlit reflective subjects (car with a reflective body, etc.).(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 < > (or < > on older lenses) and focus manually.(→p.26)If focus cannot be achieved with the AF-assist light of a Speedlite or ST-E2, selectthe center AF point. An off-center AF point might not be able to achieve focus.