[Brightcolours]

[quote name='boren' timestamp='1300125839' post='6768']

Klaus, the subject of tracking subjects approaching the camera has been discussed to death, especially in the context of CD-AF vs. PD-AF. Unfortunately no review site has bothered to test this, at least not with recent cameras. The last test I'm aware of that attempted something like this is from several years ago:



http://www.pentaxforums.com/forums/pentax-news-rumors/25521-magazine-review-k20d-supersonic-drive-motor-auto-focus-c-performance-vs-8-competitors-good-info.html



A more recent test (in Japanese) that compared the K-5, D300s and EOS-7D can be found here:



http://dc.watch.impress.co.jp/docs/review/special/20091225_339741.html



I think it would be extremely interesting to conduct a test that compares SLR, SLT and mirrorless cameras to see the significance of CD-AF vs. PD-AF and that of the non-flipping mirror (which in principle at least should be an advantage). Any chance you'd consider doing such a comparison between the A33, a DSLR and one of those Panasonic mirrorless cameras that are claimed to be "faster than DSLR's"?

[/quote]

We were talking PD-AF exclusively here, and its predictive tracking capabilities (which relies on the AF cumputer, not the PD sensor itself). According to dpreview, the tracking capabilities do not match the sports capabilities of the high frame rate possible.



A Grman magazine tested the AF tracking performance a few years or so ago, it was an interesting read. Tested were the Canon 40D, 1D mk III, Nikon D80, D300, D3, Sony A700, Pentax K20 (I think) and Olympus E3.



I am not aware of if they have repeated the test again with more recent cameras. It was the only systematic and quite scientific AF tracking/FPS test I have seen/read.



I think it was ColorFoto, but it might have been Foto Magazin.