Originally posted by 672 "thanks , its the pentax 67 800mm f.6.7 "
That must be the star version of the 800. The image is incredibly clear for the shooting distance involved. In viewing the image, it is entertaining to speculate exactly where the precise focus was. It must be near impossible to focus on a single point with this kind of lens. I am tempted to try to acquire these long 645 and 67 lenses to complete my collection, but I know I could never use them appropriately so will probably give up the idea. Hope you will keep up the great work with this fantastic lens.