You may not believe this, but we shoot on our 500 using a Canon SD lens. If it piques your interest, I'll send it on to you as far as which actual lens it is. But here is something we shot recently with it: http://vimeo.com/8108790
Your spot looks good. It's just that the producer wants to use a HD lens because of the detail. But, yes, I've used a Canon SD lens, and it looks good.