Specially the latest three
??????????????????? : ??????????????????
I tried for Google translation but it seems very confusing. Only thing I could make out that Mr. Masaaki doesnt like to shoot with Polarizing filters which may affect lens qualities. I thing he doesnt like to use extensive PP too.
So we can guess that the shots which are posted are JPEG direct from camera and seem very good, moreover in the last three shot I guess he tried to mimic the effect of Polarizing filter by somehow tweaking on camera image adjustments before and after taking the shot.
He might have tried DRE (dynamic range extender) and some specific scene mode with fine adjustments. K-5 does provide plethora of fine adjustment even with scene modes.
Yes bigger size would be great but what I guess is this professional photographer is still evaluating the camera and going to give his feedback to Pentax. Before that we may not see full size images.
His profile is very interesting;
MASAAKI AIHARA
I see Sony, Fujifilm, Honda, Australian Embassy and Aus. tourism commission are his clients.