K-5 AF is Beyond Reproach!

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Pentax K-5 excels in German CoFo magazine autofocus test
This is rare and good news for Pentax:

Pentax wins a comparative AF test executed by German magazine ColorFoto, as reported in issue 09/2011 in hands now by subscribers to the magazine.

The cameras participating in the test have been:

    Phase AF (in order of respective accuracy, best is first):

    Pentax K-5
    Sony Alpha A55
    Canon 7D
    Nikon D7000

The headline reads:

    The phase AF fraction surprises with an outsider being their number one: Pentax focusses most accurately, ahead of Sony and even Olympus (contrast AF).

The original report contains a few benchmark figures too.

Camera    % sharp % acceptable  % not sharp
Pentax K5       62,4%    28,9%      8,6%
Sony Alpha 55  62,1%    16,4%      21,4%
Canon 7D        40,2%    29,7%      30%
Nikon D7000     35,2%    40%      24,8%

German magazine ColorFoto is the leading printed photo magazine in Germany. The AF test is their September cover story.
www.colorfoto.de/news/colorfot…

This is breakthrough News for the Pentax K-5! One of the downfalls with Pentax in the past when compared to their Nikon and Canon counter parts was the snobbery about their AF being superior to the Pentax, thanks to ColorFoto we have evidence this is no longer the case.

They performed about 1300 measurements with 57 lenses on nine cameras.
10 shots using AF were taken in wide/standard/tele position with each lens.
Another picture using manual focus with optimal resolution is the reference.
The ratio of the resolutions of the pictures then serves as a measure.
Lenses used on the cameras:

Canon 7D

Canon 14/2.8
Canon 10-22/3.5-5.6
Sigma 10-20/3.5
Sigma 8-16/4.5-5.6
Tamron 70-300/4-5.6
Sigma 70-300/4-5.6
Canon 70-300/4-5.6
Tamron 70-200/2.8
Canon 70-200/4
Canon 70-200/2.8 (-)
Sigma 18-250/3.5-6.3 (-)
Sigma 85/1.4
Tamron 60/2
Sigma 50/1.4
Canon 24/1.4
Canon 16-35/2.8
Tokina 12-24/4 (-)

Nikon D 7000

Sigma 10-20/3.5
Tamron 70-200/2.8
Nikon 70-200/2.8
Nikon 28-300/3.5-5.6
Sigma 18-250/3.5-6.3
Sigma 70-200/2.8
Sigma 85/1.4
Nikon 85/1.4
Tamron 60/2
Nikon 24-120/4
Tokina 12-24/4

Pentax K5

Pentax 21/3.2
Pentax 15/4
Pentax 14/2.8
Sigma 10-20/3.5
Sigma 70-300/4-5.6
Pentax 50-200/4-5.6
Sigma 18-250/3.5-6.3
Pentax 55/1.4 (The Pentax performs better/more consistent than the Sigma)
Sigma 50/1.4
Pentax 12-24/4

Sony A55

Sony 20/2.8
Sigma 10-20/3.5
Sigma 8-16/4.5-5.6
Sony 70-200/2.8 (-)
Sony 55-200/4-5.6
Tamron 60/2
© 2011 - 2024 PentaxK-5
Comments1
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vt102's avatar
This is interesting since CoFo was not known to be overly entusiastic about Pentax DSLR equipment in the past.

One thing I'm missing are tests with some of the other Pentax SDM-Lenses.

Anyway, nice to hear that we could beat the big ones :)