[MatjazO]

I do not have a recollection of Pentax attempt. Moving film plane camera was made by Contax with AX model. It died soon as it was complex, costly and slow to focus. It also resulted in a very big camera for the time as it required complicated mechanical assembly. Lens AF technology itself proved to be way superiorin in every way.

Today, even less likely but for a kickstarter campaign. ;-)