A7rII Eye AF: has far more accuracy than a DSLR.# PhotoGear - 摄影器材
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http://www.sonyalpharumors.com/a7rii-and-rx100m4-eye-af/
Dpreview tests the A7rII and RX100m4 Eye AF: “has far more accuracy than a
DSLR!”.
Their conclusions are rather impressive:
1) A7rII with adapted 50mm Sigma EF lens: In fact, it’s this accurate phase
-detect AF that allows the a7R II to focus the Sigma 50mm F1.4 lens with far
more accuracy than a DSLR. We have to microadjust F1.4 primes all the time
on DSLRs to get accurate focus out of them, and even then, peripheral AF
points may continue to be off
2) A7rII with 24-70mm FE lens: The camera automatically finds the nearest
eye, and continuously focuses on it, despite rather drastic and fast
movement along the X, Y, and Z (distance) axes. No hunting, no jumping off
to some other subject, just fast and effective AF on Richard’s eye.
3) Eye AF on the RX100m4: it’s really, really good, especially when you
consider the RX100 IV has a contrast-detect only AF system.
Dpreview tests the A7rII and RX100m4 Eye AF: “has far more accuracy than a
DSLR!”.
Their conclusions are rather impressive:
1) A7rII with adapted 50mm Sigma EF lens: In fact, it’s this accurate phase
-detect AF that allows the a7R II to focus the Sigma 50mm F1.4 lens with far
more accuracy than a DSLR. We have to microadjust F1.4 primes all the time
on DSLRs to get accurate focus out of them, and even then, peripheral AF
points may continue to be off
2) A7rII with 24-70mm FE lens: The camera automatically finds the nearest
eye, and continuously focuses on it, despite rather drastic and fast
movement along the X, Y, and Z (distance) axes. No hunting, no jumping off
to some other subject, just fast and effective AF on Richard’s eye.
3) Eye AF on the RX100m4: it’s really, really good, especially when you
consider the RX100 IV has a contrast-detect only AF system.
