flavio81
Member
Thanks for passing that information along. I always use the mirror lock-up feature anyway at speeds 1/60th and slower. Of course, adding more mass to the system, like a wooden grip, a big heavy telephoto, solid attachment to a wooden tripod below, etc, helps control any potential vibrations.
The way the wooden grip is offset (much forward than the image plane in the horizontal axis), will help restraining the vertical movement/shock of the mirror.
As you said... Pentax knew what they were doing. However it would be great that they made the wooden grip a required accessory, not optional...