Originally posted by biz-engineer It's a Pentax K-01 concept (no EVF, CDAF) with a L mount and full frame 24Mp. Pentax K-01 was a flop at the time , because no one had been brainwashed with the mirrorless thing. The K-01 was too early. In 2019 anything that's got a mirrorless sticker on it will be promoted. People brains of 2019 associate "mirrorless" = "good", the electrical path in the brain has been wired, it wasn't so at the time of the K-01.
The K-01 had controversial styling and ergonomics, poor AF, and a high price. It was also bulky compared to most mirrorless cameras that eschewed a sizeable grip. My entry level Olympus cost half the price and had better AF performance, and small lenses to match its diminutive size.
Pentax subsequently released a firmware update that significantly improved AF performance, but the damage was done. Pentax shot themselves in the foot.
I say this as someone who likes the K-01 so much that after mine died I bought another. But the K-01's poor reputation has nothing to do with consumers' brains being "wired"; Pentax released an odd duck of a camera that was essentially unfinished.
K-01: 122 x 79 x 58 mm, 561 g
Sigma lp: 112.6 x 69.9 x 45.3 mm, 370 g