Originally posted by biz-engineer You are right. I did not jump in DPR at first. I read there evaluation and since I had never really push the Pentax K1 AF system, I was curious about what I would get. So, I first took dpreview evaluation for true, I questioned myself and I went out to try it to see what I would get. I was surprised that I got worst case 85% keeper rate, and often 100% in focus, very different from DPR claiming 85% out of focus shots. I read comments from non K1 owners on DPR posts, saying that DPR review is probably right, from knowing Pentax AF reputation, somhow backing up DPR conclusion based on nothing. I couldn't accept this. If DPR conclusion is the 50% AFS shots are out of focus and 85% AFC tracking shots are out of focus, and I get the contrary from my camera, I can't let go that every non Pentax K1 owner will wwallow a conclusion that's so far from reality of the field.
You may get a sequence where 85 or even 100% of the shots is in focus. I'm not saying that's impossible. I've also seen topics in DPR forums where users posted their own sequences with a higher percentage in focus than the DPR test shows. Unfortunately, the test conditions were also quite different, e.g. a greater distance, less distracting backgrounds etc. So, my conclusion is that those sequences still don't prove that DPR deliberately made the K-1's focusing look worse than it is.
So my question would be: have you asked them about the speed of the cyclist, the distance from the camera, and maybe other relevant things? Have you tried to recreate that test as closely as possible? If so, you may have a point. If not, the K-1 might still be perfectly adequate for the situations you encounter, but it doesn't prove that their test was carried out in a way to make the camera look bad.
Again, look at the 80D review. That also had a significant percentage of out-of-focus images.
As far as AF-S is concerned, I raised eyebrows too when I read about the 50% out-of-focus rate. Haven't really looked into that though. I don't really need to either, because I'm happy with my K-3's AF-S performance. If you have a gripe with that, I could understand it better. But I thought this topic was about the AF-C test?