I've been a 1st for about a year now, so I'm relatively new to the position. As far as pulling focus is concerned, I'm not bad, but on more complex shots (longer lens, less stop, etc.) I won't always get it right on the first take, especially on low budget, fast paced indie work where a camera rehearsal doesn't always happen. So my question is, do most DPs expect the focus to be sharp and perfect every time, or is there a little room for the occasional error?