![]() These allow you to specify whether you want to select individual AF points or groups of AF points to target the subject. Now that cameras have more than one AF point there are modes to help with their selection. When this mode is selected, the camera focuses continuously without the need to half-press the shutter release. Nikon’s mirrorless cameras have an extra AF mode available in video mode called Full-time AF. ![]() That can be handy, but generally, it’s best to opt for Single-AF or Continuous-AF according to your subject. Some cameras also have an Auto-AF setting in which the camera switches automatically between Single-AF and Continuous-AF depending upon whether it detects any subject movement. Single-AF or One-Shot AF mode is designed for photographing stationary subjects while Continuous-AF is for moving subjects and is often combined with burst shooting. The AF points, for example, usually go closer to the edge of the frame, and the increasing availability of face and eye detection makes getting the most important part of a portrait sharp a cinch.Īs with a DSLR, one of the first decisions you have to make when shooting with a mirrorless camera is which focusing mode you want to use: single or continuous. As a rule, mirrorless cameras have some advantages over DSLRs with regards to focusing. In fact, you can shoot fast-moving sport and action with most enthusiast and pro-level mirrorless cameras, but naturally, some make it a bit easier than others. While the earliest mirrorless cameras weren’t able to match DSLRs for autofocus, they’re now generally very good. Mirrorless cameras that use phase detection have on-sensor pixels for assessing the focus and driving the lens to get the subject sharp. Phase detection is usually faster, as the camera knows which way to adjust the focus group and how far. It can also overshoot the point of highest contrast, and have to back up for perfect focus. Its problem is that the camera has no way of knowing which direction to adjust the focus initially, so it can go the wrong way. Contrast detection is a very accurate method that looks at the edges of the subject and moves the focus until the point of highest contrast is found.
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