StigNygaard
lvl.4
Flight distance : 357169 ft
Denmark
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I know this is a discussion of terms, where we all can have our own personal opinion. But from my many years in photography (from even before autofocus emerged), autofocus has always meant it is automatic, not manual, focusing. Ie, you don't have to tell the focusing-distance, you tell the camera to measure it...
Yes, continuous focus is also autofocus, but it is a special variation of it. Continuous-AF is sometimes also known as focus tracking or Servo AF. Here's an explanation which follows the terms pretty much as I use them:
http://www.exposureguide.com/focusing-modes.htm
But when I talk about AF on Mavic I primarily think of tap-to-(auto)focus. That is the normal focusing way in my head, and the most common way to use autofocus in my opinion. At least when it comes to a camera like the one Mavic has.
Besides the various autofocus modes and manual focus mode found in cameras, there's also fixed focus cameras/lenses. As the name says, they have a fixed focus distance, and solely rely on depth-of-field to have most things (reasonably) sharp in the picture. Most consumer drones and action-cams (for example the old Phantom drone models and the GoPro action cameras) all have fixed focus cameras. Potentially you could also freeze the focusing at one distance on the Mavic, and have everything from medium-distance to far-away sharp. Many people seems to be used to this from previous experience with Phantom models, and might have mistaken it for a kind of autofocus because they didn't have to think about focusing (But the downside being that everything close became unsharp).
Also I have to say that continues focusing options until recently wasn't a thing that was normal in other camera types than (D)SLRs. That is because the way (D)SLRs are build you can make a much more effective autofocus tracking without "hunting" focus (using mirrors and "phase detection"). The autofocus type used on other cameras has usually been contrast-based, and this implies you have to focus past the optimal distance before you discover it was the optimal distance/contrast (-> thus a bit "focus hunting" is unavoidably). Lately some new camera types and sensors has introduced new advanced focusing technologies sometimes making it possible to make effective continuous focusing modes on other camera types. Mostly seen in so called "mirrorless" systemcameras and high-end compacts. However, that is not the kind of camera/sensor sitting in the Mavic.
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