Quote Originally Posted by RH Designs View Post
The OM-2 does have lock-up in a sense - if you use the self-timer the mirror locks up as soon as you press the shutter release, the shutter then opens after the delay. So it's almost as good as a dedicated mirror lock-up function.
My mistake, sorry. I was thinking of the OM-2SP which like the OM-4 and 4Ti does lift the mirror when the release is pressed, then releases the shutter after the delay.