Originally posted by noblepa 
Back in the days when film was king, many pros used the Pentax 6 x 7 or 645 cameras. Hoya may want to regain that place in the market. Isn't that what the 645D would have done?
If Pentax wants to reclaim their share of the pro market, the 645D is their best bet, IMO. Jump the megapixels and low light capability way beyond anything Canon or Nikon can accomplish even with a FF sensor. IMO, if the price was held down, such a camera might also capture a big chunk of the advanced amateur market, too...especially for those photographers for whom image quality is more important than fps and autofocus speed.