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Forum: Pentax K-1 & K-1 II 05-25-2016, 02:42 AM  
K1 Autofocus
Posted By RockvilleBob
Replies: 115
Views: 26,144
Thanks for posting all your observations Barry. I find them very helpful and appreciate your effort.
Forum: Pentax K-1 & K-1 II 05-24-2016, 06:11 PM  
K1 Autofocus
Posted By RockvilleBob
Replies: 115
Views: 26,144
I look forward to the PF review - to me it is all related - if I focus on capturing wildlife action shots my experience has been AF tracking, frame rate and buffer throughput control how many good shots I get during a wildlife sequence. If the camera cannot track the sequence I miss shots, if the frames per second is slow I may miss a shot and if the buffer fills and I cannot shoot anymore I miss shots. Moving from the K5 to the K3 improved all three and improved my keeper rate and good shots per outing, but I feel the K3 is still not up to a competitive level. At 4 fps I would expect an extremely high keeper rate and a buffer that doesn't quickly fill. So to hear the buffer throughput is slow is concerning and it is good to hear that the Pentax Forum will look at this. So perhaps from your point of view it is not AF but from my point of view after getting myself in a position to capture an action sequence when I properly focus on the object but get a low yield it is an autofocus issue. The camera is not getting enough good shots - again assuming I did what I could correctly.
Forum: Pentax K-1 & K-1 II 05-24-2016, 04:27 PM  
K1 Autofocus
Posted By RockvilleBob
Replies: 115
Views: 26,144
Didn't realize it was pre-release firmware but what caught me off guard was:

Buffer clearing was quite slow, taking a glacial 48 seconds to clear a burst of 74 JPEGs, 31 seconds after a max-length burst of RAW files, and 34 seconds after a max-length RAW+JPEG burst, when tested with our 95MB/s SanDisk Extreme Pro UHS-I card. (Unfortunately, the Pentax K-1 is not UHS-II compliant.)


Bottom line, the Pentax K-1's performance was mixed in our tests, ranging from very fast autofocus and single-shot cycle times to sluggish startup, mediocre burst speeds and slow buffer clearing.
Forum: Pentax K-1 & K-1 II 05-22-2016, 04:33 PM  
K1 Autofocus
Posted By RockvilleBob
Replies: 115
Views: 26,144
Some good news and some disappointing news in this particular test report.
Forum: Pentax K-1 & K-1 II 05-21-2016, 08:15 AM  
K1 Autofocus
Posted By RockvilleBob
Replies: 115
Views: 26,144
Is this with the latest firmware installed?
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