Quote Originally Posted by Hatchetman View Post
I'm happy with my Spotmatics and all my screwmount lenses, though I wish I had mirror-lockup.
Usually the finger-flick on the shutter button trick will lock up (actually pre-release) the mirror on Spotmatics. As far as I know, that's true for any of the Pentaxes based on the Spotmatic design, including the MX.