Quote Originally Posted by Chan Tran View Post
I know that but my camera is ok now. But if you can do the trick to me it means a design problem rather than a feature.
Not a problem- a characteristic. If the machine works well, and reliably, which the Pentaxes certainly did and still do, how is it a design problem? It takes a deliberate action to trip the mirror but stop the rest of the cycle. Operated normally, it works normally.