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11-16-2009, 12:20 PM   #1
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How fast is K-x in terms of AF speed?

Are there any tests on this topic? It looks like K7 is really decent. Thanks.

11-17-2009, 04:23 AM   #2
RaduA
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QuoteOriginally posted by Taikonaut Quote
Are there any tests on this topic? It looks like K7 is really decent. Thanks.
This may help you with some solid numbers: Pentax K-x Performance, Timings, and Image Quality

Radu
11-18-2009, 04:42 AM   #3
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as to my friend's (k7 user) opinion only k7 has remarcable progress in af speed as it has next generation (8+) of af. k-x has the same af (8) as previous models.
11-18-2009, 04:56 AM   #4
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Not sure about the K-x/K-7, which are said to be similar to the K-m. My impression is that my K-m is faster and more certain than the snail speed Ds, but still a little behind the Z-1p in pure torque and speed. None of them match my 40D with USM for moving target, not even close.

11-18-2009, 05:00 AM   #5
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From my own experience, Kx focuses slightly faster than the K7 w/ FA31 mounted on both cameras under room light. Kx is more decisive than K7 w/ FA31. I didn't get chance to test other lens under other light condition though.
11-18-2009, 05:28 AM   #6
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AF in the K-x is perceptibly faster than my K200D using the same lenses. Faster and more 'confident' too, especially in lower light.
11-18-2009, 08:48 AM   #7
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What about the accuracy? Thanks.

QuoteOriginally posted by frank Quote
From my own experience, Kx focuses slightly faster than the K7 w/ FA31 mounted on both cameras under room light. Kx is more decisive than K7 w/ FA31. I didn't get chance to test other lens under other light condition though.
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