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Saturday, July 18, 2015

K-3 Vs K-3 II AF-C Shootout

http://history.hatenablog.com/entry/2015/06/08/000000
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Chris's avatar

Chris · 504 weeks ago

What is the result? Sorry I cannot read Chinese...
2 replies · active 504 weeks ago
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RiceHigh 110p · 504 weeks ago

The test pics are self-explanatory. :-)
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RiceHigh 110p · 504 weeks ago

The K-3 II is improved and better.
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anonimity is great · 503 weeks ago

some improvement over the k-3 but not much. only about 10% better hit rate. i wonder how the new 7d performs in the same situation?
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RK0's avatar

RK0 · 503 weeks ago

Hit rate (although improved more than you say) is not the important parameter here
because it naturally drops with decreasing distance.
Important is the smallest distance at which the AF prediction still works. In the K-3 II
case it seems to work to about four times smaller distance, where DOF is 16 times
smaller, or, down to some 15 meters where the DOF is like half a meter, much less
than frame separation as the train was doing several meters between frames, if I
read correctly.
1 reply · active 503 weeks ago
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zosX's avatar

zosX · 503 weeks ago

Thats interesting. I think any improvements should be welcome at this point. The K-3 II has greatly improved SR too.

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