Hi everyone,
I finally got myself a pentax 67. My first medium format camera. I have read the manuals and all, and it seemq really cool and not to hard to use.
There is one thing though I can't figure out:

When pushing to mirror lock up button, indeed the mirror flips away and one can't see anything anymore trough the viewer. But how to undo that? Other than pressing the release button and actually making a photo?

Thanks for any help, Best regards Sam