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Forum: Photographic Technique
02-26-2019, 08:51 AM
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I am just making assumptions, but I guess that even with 1 inch at F4 at these close distances it is pretty easy to judge if the AF hit or not. Yes, there will be more DoF, but it probably did not influence their judgement.
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Forum: Photographic Technique
02-25-2019, 08:54 AM
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All scenarios had the requirement to focus on the tip of the locomotive leading the train with all waggons. "nailed" was focus correctly on tip of the train. failed somewhat means focus hit the locomotive but not the tip of it. failed completely means the lcocomotive was not in focus at all.
In the magazine there is a pretty detailed explanation with smaple images and sketches of the setup to explain what was done.
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Forum: Photographic Technique
02-25-2019, 06:04 AM
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In three out of five cases yes. In the two others (#2 and #3) it underperforms.
#2: Training coming straight at the camera, distracting moving objects cross in front of it.
#3: no tracking really, just panning, following the train from right to left in front of distracting background
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Forum: Photographic Technique
02-25-2019, 12:29 AM
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The German magazine" c't Digitale Fotografie 02/19" just published another AF.C autofocus test comparison.
While 99.9% of what is written about autofocus on the internet not even reaches elementary school scientific quality the testers here did set up some scenarios which could be reproduced technically 100%, so results are relevant and say a lot (within the boundaries tested).
They did set up contrasty Lego toy trains in good light and shot them as they were coming at the camera in various angles and with various items block sights.
I will not invest the effort to describe more details, just the results. Who really cares has to buy the magazine/article: Autofokus im Praxistest | c't Digitale Fotografie | Heise Magazine
Again the results are telling a lot about the credibility, skills and brains of users who claim "near 100% autofocus hit rates" on the net for their loved gear. They seem to shoot brick walls only. ;)
It also shows that even within a group of relatively similar scenarios, the relatively best camera can change. So overarching general statements which gear is best are nonsense all the time.
Obviously all cameras struggled quite a bit.
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