Use Hoodman eyecups for Canon 22mm on your Olympus OM-D camera!
Fits the E-M1, E-M1ii, E-M1iii and E-M1X.
See Hoodman Eyecups
for fitting eyecups.
Due to the size of the eyecup, The rear display may be partly covered and flipping it may be restricted.
It doesn't stop at eyecups! As long as it fits a Canon 22mm finder receptacle, you may fit it to your olympus camera too!