I stand corrected. Wide babiiiee! Don't have to worry about being in or out of frame at all, especially on big chip cameras. Even APS-C is 35mm motion picture film frame. I've thought of adding a 17mm Canon FD and a 300mm. 300mm for bird and wildlife b-roll shots while I'm out fishing. 17mm for a boat lens because my boat is so small. Although the 24mm is adequate, I have to more carefully frame my talking head shot while doing fishing videos. The focal reducer helps a lot though.
24mm is wide enough to give some basic context, but those old-school wide-angle lenses like 14mm and less were not the best lenses of that era.
The telephoto for M4/3 on a 300mm lens would be awesome! the 70-210mm FD zoom I okay in terms of reach, but for birding, it just isn't enough especially when used with the focal reducer. You need the focal reducer to refocus the light down to that smaller sensor. I'm hoping Panasonic's new s1 series will be great. It might be worth stepping up to full frame then.