Hi Jon and many thanks for your input.
I think if I this was a live music event those plugins might really do the rick, so thanks for the tip.
However this is a “dry” piece with a single presenter talking to a theatre audience.
Brilliant idea of hiding the zoom under the dissolve, so thanks for that too.
And that might almost have fixed the problem except that the reason I’m having to zoom in to begin with, is that the shot from one of the angles (stage right) was framed with a poster in shot that I’d really like to lose. This of course, shows up in both “halves” of the dissolve.
I’ve tried creating a matte and revealing a matched background underneath, but the poster ghost from the “other half” of the dissolve just keeps on showing through no matter what.
Ironically, the image is actually less important than the dialogue, but I don’t have any other footage to play with.