Or you could use Rain-X like we've always used

Tim Naylor ... you aren't hiring the right people. Have you seen how perfect BIRDMAN's focus was? All by eye ...

Can it be set to ignore foreground objects?

you mean like the ones that have tried and failed?! Contour, Drift, Garmin, Veho, Ion and Replay? flat is better usually

Good editing ... see Sherlock!