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09-13-2010, 07:25 AM   #16
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We have to read carefully:
"Accuracy and speed of contrast AF operation during Live View shooting is enhanced with a new-generation image sensor and drastic upgrading of AF algorithms." (Source: Pentax press release)

This is about contrast AF only. Not a word about improving AF in general.

09-13-2010, 07:36 AM   #17
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K-r is already tried by our friend....
He says WoW
09-13-2010, 07:39 AM   #18
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contrast detect AF in the Kx is pretty slow and poor. sometimes racks from closest focus to infinity and back before locking AF so that would be a welcome improvement.

Pentax did mention that the SAFOX IX has better "optics" for accuracy.

however, the most important is the phase detect.

i shoot my daughters sporting events and while i'm making the best of my Kx, the Kr hopefully is more than just a WoW, more like "OH WOW THAT"S MORE LIKE IT! WHERE HAS THIS AF PERFORMANCE BEEN IN THE LAST 5 years? "

kinda thing
09-13-2010, 08:21 AM   #19
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QuoteOriginally posted by Christopher M.W.T Quote
There's only so much you can do in software.

I found my K-7's AF was gradually improved between ver 1 to 1.1 but at the end of the day the limitations are the hardware.
On the contrary!

Software is what makes the difference between an AF that is good and accurate in AF-S only and one that stays glued to the target in AF-C as well. Of course the hardware has to be there as well, but without great algorithms, you will never have predictive AF-C.

This is doubly true of contrast AF.


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