No, that's possible (and necessary) on the Pentax 67, in my opinion, and another reason to be on a tripod. The older version of that Pentax, called 6x7 didn't always have Mirror Lock Up (MLU), but did have a modification that could be done to allow MLU. What I have is the second version of the camera, Pentax 67. There was one final version made, Pentax 67ii.