Its common for many new to the RB67 to forget or not know about the floating optical adjustment on many of the RB lenses. Without adjusting the floating element at the front of the lens to compensate for the distance of the subject many RB lenses will be soft to those unfamiliar with the RB system who forget to adjust the lens. Properly adjusted it will be sharp, assuming everything is in focus. You must adjust the floating element for each subject at varrying distances.

Jim