Quote: 2. Landscapes - FF bodies of Canon and Nikon offer better image quality overall compared to Pentax’s crop bodies.
A D800 offers better landscape IQ and I'm assuming the Sony A7r. I've yet to see comparisons between a K-3 and whatever Canon has to offer, but at low ISO I'm willing to bet a K-3 will stand up to any Canon FF models, so in answer to that I'd say, it depends. I would say the same about the D600, and 6D. I'd fully expect a K-3 landscape from 100-800 ISO to be better than a 6D and very close to the equivalent of a D600. Looking at the images over at Imaging Resource, I was finding my K-5 images comparable to the best Canon FFs.. in the ISO range indicated above. The K-3 has stepped it up a notch, Canon hasn't kept up.
Originally posted by DDoram The K3 should not be compared to Canon/Nikon full frame bodies but to the 70D and the D7100. There is no proof that either camera has faster and more accurate AF than the K3.
Dale
Back in the early K-5 days I saw, actual tests of focusing speed, and at that time in good light, a K-5 was almost as fast as a Canon or Nikon. within .015 of a second. However the K-5 fell behind as the light fell off, the Nikons and Canons often focusing a half second better in low light. I have seen no such comparisons since the K-30 and K-5 IIs came out, as Pentax has bumped their low light performance, there have been no comparisons that I know of, to suggest there is any Canikon advantage in any light. That being with the K-5 IIs. The K-3 being a whole new system even more advanced than the K-5 II is even more untested. Yet even in the K-3 review on the forum it is clearly stated that the K-3 doesn't focus as fast as a Nikon or Canon, but no one is showing us any numbers.
To me it's just repeating the results of tests done years ago and applying it to new equipment, so it may or may not be true. But I haven't seen one review anywhere that suggests Pentax is slower than a Canon or Nikon in good light that has given anything but the .015 number. So I view that statistic with more suspicion, with the release of every new camera body.
So maybe someone could point out where they are getting this stuff from. I'm not sure where I originally saw it. And it would be nice to look over some current stats, with current bodies. Those K-5 stats are getting real old right now. And those stats gave Pentax the edge in the % of keepers, achieving focus lock more accurately than either Canon or Nikon. So even back in the K-5 days, the Canon Nikon focus system didn't have an advantage. It appeared that they had sacrificed focus accuracy to achieve focus speed.
Whenever I had real numbers to look at, the trade offs and strengths and weaknesses were apparent. Right now, I don't own any Nikon of Canon equipment so I don't know. But it was never that the Pentax system was all bad, compared to the other two. That was a myth of the times.
A myth that was repeated despite evidence presented to the contrary.