It’s been some time since the days of purely manual focus lenses, and technology is moving forward at an ever-increasing rate. Today’s autofocus systems are almost incomparable to even the high-end DSLRs of 10 years ago. However, they still can’t read minds so it’s good to have a sense of how they work and where they can fail.
The dot tune method can help you to adjust focus when your camera has been focusing a little in front of or behind your selected subject. You just need some basic photo equipment and the right distance and angle between the camera and a block of text you’ll focus on.
Camera-shopping lately? You can avoid nasty surprises and grow as a photographer by knowing how camera focusing systems work. There are several different systems with different advantages and disadvantages. Learn them and keep them in mind, and you’ll take clearer pictures—and maybe save money too!