Why don't you turn up at their next gig and say to the guitarist "D'ye know what mate, don't bother with the electric guitar and the amp, just use an acoustic."

I'm amazed at how many "directors" come out of the woodwork on location and impressed at how a complete lack of knowledge doesn't inhibit any of them from giving advice.

I think you've done really well under those conditions but, in the future, stick to your guns. In a few weeks, when someone comments to the band that it looks a bit "mushy" they one thing they won't say is, "Yeah, the cameraman warned us about that but we insisted he did it our way."

Which of the following reputations would you prefer...

1. Mark's a really nice guy but his videos aren't the best quality-wise

2. Mark's a bit of a Prima-donna to work with but he does make exceedingly good videos.