![]() ![]() The camera will tend to automatically find the largest face, track it across the frame, and focus on it. If face-detection is on, though, the camera will focus on faces no matter where they appear in the frame.Īnd face-detection works quite well on the a7 II. Presumably this is because the camera prioritizes the use of phase-detect AF points. It's worth mentioning that if you set the camera's AF area to 'wide' (the default AF area, where the camera automatically selects which AF points to use), the a7 II only uses the central portion of the frame for focus. That said, when the subject re-enters the central portion of the frame, the camera usually does a good job of picking it back up again. You can see this at around 0:05 in the video above. When these kick in, if your subject leaves the central portion of the image (the phase-detect area, indicated by the brackets), the camera will no longer track your subject. Though we initiate AF on the black and white cat at 0:19, the green box has trouble sticking to this subject, eventually wandering off to the yellow horse at 0:31.įurther complicating things is the fact that this green box is sometimes replaced by a flurry of small phase-detect AF points that try to stick to your subject. The green box also often has trouble identifying and sticking to your subject. Note how it transforms into a flurry of phase-detect AF points at 0:05 once this happens, the camera seems to only track subjects within the central portion of the frame containing phase-detect AF points (indicated by brackets). The green box indicates what the camera thinks you want to focus on and track. You can see this in our first sample below at 0:19, we initiate focus on the black and white cat, and the green box has a difficult time sticking to it, and eventually wanders off to the yellow horse at 0:31. When it works, it works when it doesn't, the green box may have totally wandered off to a different subject. But sometimes this green box outlining your subject just has a mind of its own. You'll see this as a green box outlining what the camera thinks is your subject, and this green box will move, grow, and shrink to try and remain on your subject. The biggest problem we noted was that instead of faithfully tracking exactly what was underneath the AF point when focus was initiated, the camera tries to intelligently pick a subject near that AF point. Factors like the size of the subject in the frame and the camera's ability to differentiate that subject from the background make a huge difference. Subject tracking does work noticeably better than tracking with the original a7, but it does not perform as well as the a6000's subject tracking. As long as you keep your finger on the shutter button, the camera will attempt to stick to and focus on whatever was underneath the AF point when you initiated focus. Lock-on AF allows you to select an initial subject to track simply by placing it under the selected AF point and depressing the shutter button halfway. Subject tracking, or 'Lock-on AF' as Sony calls it, functions with some success, depending on several factors. Note: This image was processed through Adobe Lightroom 5.7.1. ![]() All of them were sharp, despite the singer's wild movements and less than ideal lighting conditions. I was tracking the lead singer (shirtless guy), and waited until he stepped into a portion of the stage with some brighter light to fire off a few frames. This is an example of subject tracking on the a7 II working well. As soon as you stop turning the ring, it zooms back out. It simply zooms in the frame when manual focus is switched on, but not until you start turning the focus ring. Sony's method for manual focus is painless, and actually kind of fun to use. Thankfully, switching the camera to manual focus mode, via the button on the back of the camera, is ridiculously easy. Lowlight is one area the a7 II still has a very difficult time acquiring focus. But with the a7 II, you can track with varying degrees of success. We found subject tracking with the original a7 to be often be untrustworthy. We were also told by Sony that subject tracking had been improved 1.5x. If you're coming from shooting with either the "S" or "R" you will certainly notice a vastly more robust AF experience. That's 119 more then the a7S or the a7R, which use contrast detect only. Keep in in mind, both the a7 and a7 II have the same number of phase detect points, 119 in total. ![]()
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