Doing sound with camcorder, good idea?

[Nolan]

Hi there. I know this is a super8 forum but my new project will be shot on 16mm. This is the first time I'm doing some dialogue. I have a Canon ZR20, and am going to record the dialogue with it. Is it wise to use the camera's built in mic or should I use an external mic to record sound? Good thing is that there won't be a ton of dialogue, but I'm more worried about sound quality than how the audio will sync up with the telecined footage, any suggestions?

[Scotness]

Use the best mic you can - and something highly directional too - it will make alot of difference. Sennheisers seem to be standard for proffessional sound recording.

Scot