What is the M.In Focus Trigger Cord?
This is a cord that is used with a motordrive or winder and two combinations of lenses and/or cameras: 1. OM-F (OM-30) and any manual focus lens 2. Any OM body (including the OM-F) and the 35-70mm f/4 AF Zoom lens. Basically it allows the photograph to be taken as soon as the image in the viewfinder is in focus (there is a button on top of the larger plug). Thanks to Paul Lind vi Simon