My apologies in advance if this link has been posted before. Ed's made such an ongoing video saga regarding the high-ISO, Jpeg, noise reduction issue that I may have lost track.
But the 'REDEMPTION' video seems to wrap it up;
In his usual rambling and disjointed way, Ed keeps promising to give us the answer(s) but get's sidetracked with lens comparisons, his track record for problem-solving, how we (he) approach a new camera body, upcoming reviews, etc.
He keeps circling and sidetracking but eventually (about 10 minutes in) gets near the point. Turn off the high ISO auto noise reduction. He's guessed at this before (and, was correct, as it turns out) but here he proves it, and 'signs off' on the K-3.
Another several minutes of circling and he gets to 'The bottom line' at 17:30, how and why the setting needs to be changed.
While I admire his enthusiasm and efforts on behalf of the brand, it can be annoying to watch a 20 minute video for 3 minutes of information. I'm grateful for his conclusion and willingness to admit that his own familiarity with the K-5IIs was part of the problem. But, a good edit wouldn't hurt, either.
JMO, Thanks, Ed!
Ron