It may be that the mirror dampening foam has turned to glue and is causing the mirror to stick up.
Also the OM4 has a mirror lockup function - its not just this that needs turning off is it? Instructions here: http://www.butkus.org/chinon/olympus/olympus_om-4_ti/olympus_om-4_ti.htm
@danb started
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It may be that the mirror dampening foam has turned to glue and is causing the mirror to stick up.
Also the OM4 has a mirror lockup function - its not just this that needs turning off is it?
Instructions here: http://www.butkus.org/chinon/olympus/olympus_om-4_ti/olympus_om-4_ti.htm