RM-UC1 Remote Shutter Release for Olympus OM-D E-M5 Mark II,OM-D E-M10,SH-1 SH-2
And, a shutter release button lock is available which for long exposures shooting and continuous shooting helpfully. Olympus OM-D E-M1; OM-D E-M5; OM-D E-M5 Mark II;OM-D E-M10. Olympus E620; E600; E520; E510; E450; E420; E410; E400; E100.