see also:

• the Olympus OM-D system and how to make the most of it
• long exposure modes in Olympus cameras

• another long exposure mode pioneered by Olympus in their Micro Four Thirds system
• essentially allows one to press the shutter release and HOLD it pressed to start the exposure then when you think it has had enough exposure, you simply release the shutter release
• note: Olympus Live Composite mode may be even more useful for you!

• in the Menu, set:
  • Cogs E. Exp/ISO: BULB/TIME Timer to your maximum desired exposure duration (1-30 minutes)
  • Cogs E. Exp/ISO: Live BULB to OFF (otherwise you get Olympus Live BULB mode)
• set IS to OFF (assuming you are using a tripod)
• select Manual exposure mode on the PASM dial
• select ISO and aperture
• set shutter to Live BULB
• press the shutter release and HOLD it pressed to start the exposure
• watch the screen
• release the shutter release to end the exposure