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The Nikon Autofocus System by Mike Hagen

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1

Autofocus Defined

One of the most frequent comments I hear from new photographers is that their images look too soft. They mistakenly place blame on the camera’s autofocus (AF) system or on a lens. They sometimes claim they received a defective model from the factory. The truth is that in almost every case the problem is the photographer, not the equipment.

Like most things in life, creating great photographs requires a fair amount of knowledge and a lot of practice. This chapter will help you understand how AF works. When you know what AF is capable of, you will also know its limitations. Let’s dive in.

How AF Works

Modern Nikon digital single-lens reflex (DSLR) cameras use AF modules made with charge coupled device (CCD) imaging sensors. ...

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