It depends on a few things. What are you recording sound with? If you have crystal sync control modified with your camera then you can record sound at a steady rate. If you have a pc port on your camera you can get a digital to pilotone converter which is a cable sync chord that will keep your sound recorder and camera running at the same speed. If you have no control, then your shots will have to be short to avoid losing sync. It be ok if you had no dialogue, but if you do a camera not outfitted with a sync control will not be a wise choice.

i have no crystal sync motor or anything. and im not sure what im going to record the sound with. maybe a mini disc, or dat, or mp3 recorder. something like that that records at a steady rate.

Are you going to digitize the film and edit it on your computer, or are you going to cut and splice the film? If you're editing digitally, what software are you using? If you have shorter pieces, going out of sync will be less of an issue. However, if you have a feature length project and long takes, the audio has a tendency to drift out of sync, especially with Premiere.

i would most likely telecine the film to hi8 or another camcorder because alot of the movie will be shot it that as well. i would not splice the film. i would like to edit it on the computer but i dont know if i will be able to because my computer is not good enough to do it on. most of my super 8 shots will be short. do you know if there are any telecine places who sync the sound for you?

If you have no sync mechanism between the camera and your sound recording device, you will most likely have sync probs. The problems arise from the fact that the camera and the sound recording device may be subject to speed variations. Even if one is constant, the other may cause you to loose sync.

You should probably either investigate syncing mechanisms for your camera, or alternatively live with the fact you'll lose sync at some point. A way to minimise your problems here is to keep all your takes short. Alternatively, shoot lots of cut aways, reverse angles etc - that way you can avoid the sync probs in editing by cutting away when you lose it (Robert Rodriguez used this technique extensively to get around sync problems when editing El Mariachi).

filmmaking.net

ok thanks.i had a question about the speeds. my camera runs at 18 fps and 24 fps. to get the closet sound sync, does it matter on which one you film on?

I'd film at 24 fps. That is the standard speed to run film through your camera. 18 fps will speed up your footage and make it look funny. If that's what you are going for, then shoot 18.