Web Analytics RiceHigh's Pentax Blog: K-r's AF Accuracy Affected Much by Colour Temparture (of the Light Source)

Saturday, November 20, 2010

K-r's AF Accuracy Affected Much by Colour Temparture (of the Light Source)

See the pictures in this experiment, the pictures speak themselves!

http://www.pentaxforums.com/forums/pentax-k-r-forum/123165-my-k-r-auto-focus-test.html

But the software guess works of using the WB setting to make some "corrections" seem just doesn't work out at all, which can be verified in the above. It only creates more chaos, like this new K-r reported and complained about.
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OGL's avatar

OGL · 747 weeks ago

Any DSLR with simple AF and exposure system has the same affect
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illdefined's avatar

illdefined · 747 weeks ago

congratulations Rice. you've just discovered the "+" in "SAFOX +". of course instead of posting about K-5's color temperature AF sensor, post about the ENTRY level model without it...
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Toomas Kadarpik's avatar

Toomas Kadarpik · 747 weeks ago

Yes K-r is without color sensor. Light bending when moving between different densities really depends on wavelength. K-r and K-x,K-200,K20 all should perform the same way from this point of view.
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Erika's avatar

Erika · 747 weeks ago

I keep asking this everywhere: Did anybody try attaching color correction filter (tungsten to daylight) and then see how AF works under tungsten? WB is a different thing, as, I presume, AF sensors are not directly affected by WB setting.

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