Это уже четвёртая часть исследования автором АФ различных камер и мне очень интересна, но статья "блочного" содержания и написана непростым Англицким. В общем суть и содержание понятны, но текст для меня сложно изложенный и для перевода одного предложения требуется много времени... dpreview.com и the-digital-picture.com читаются гораздо легче
Может кто возьмётся за русификацию? Думаю в изложении на русском будет интересна и многим другим читателям форума.
Roger Cicala Lensrentals.com September 2012 писал(а):I started this series to simply demonstrate a well-known fact; that contrast detection autofocus in Live View was more accurate than standard Phase Detection autofocus for still subjects. It ended up being a bit more than I’d bargained for just with the Canon cameras. After that series was done, I promised several people that I would take a similar look at Nikon cameras. I also got several pertinent suggestions and criticisms in the first series about gathering more data and presenting more examples. I promised to do that, too.
You ever notice how easy it is to promise to do some work later on? Only then do you realize that what you’ve promised is going to take about 30 hours to get done. That causes an immediate disturbance in the force, and your day job workload triples because there’s a holiday weekend coming up. Plus, some cool stuff that you really want to play with need to carefully evaluate comes in. So for the 3 or 4 people who were waiting for this, I apologize for taking so long.
The Conclusion
Several people wanted to see more data presented, so I’ll try to show more this time. Most people, though, simply want to know what I found. A few, of course, want to know how they can work in what I found into some raving Fanboy post or other. Sorry, Fanboys, there really isn’t any Canon – Nikon forum fodder here. These tests are fairly blunt tools that are only looking at one tiny aspect of autofocus.
Anyway, if you just want the results, they are pretty straightforward:
- The Nikon full-frame cameras all do well with center-point, single-shot AF.
- The newer bodies seem a bit better than the older ones.
- There don’t seem to be dramatic changes with a few camera-lens combinations like the newer Canon bodies and lenses showed.
There are a few rather interesting things we found this time around. Additionally, my “write as you go, not when you know” technique in this series has gotten several knowledgable people to email more thoughts and information. That helped me accomplish my main purpose: find out more about how phase detection AF works. Which lets me speculate a bit more at the end of the article.
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