![]() ![]() To keep things simple, the Drive Score only takes into account the green percentage. The Drive Score shows the hit rate I got with the fastest continuous shooting speed available on the camera, as well as the number of ‘keepers’ (images in focus) in a 1 second burst. For example, if a model can work at 20fps, but the keeper rate is better at 10fps, the AF Score will reflect the performance at 10fps. It prioritises the autofocus performance rather than the fastest burst rate the camera can produce. The AF Score represents the best keeper rate I got with a precise list of settings and a specific drive speed. We can also argue that an image may look good even if focus is only 90% accurate, and might still be usable in limited form if the action or the light captured is really beautiful. Making this differentiation allows me to better understand how the camera performs and what the potential improvements could be. ![]() When I started testing mirrorless cameras, I noticed that slightly soft results were more common than completely out of focus images, as opposed to DSLRs. You may wonder why I bother with the blue score at all, and that is a legitimate question. The two locations I go to every time are the Red Kite feeding stations at Bwlch Nant Yr Arian and Gigrin Farm in Mid-Wales.
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