The Canon 518 super 8 camera was one of the first on the market and is a very decent and affordable camera. It runs on 18 fps and slow motion (around 36 fps), has a sharp and fast lens: F1.8, 5-times electric zoom 9.5 to 47.5mm and auto/manual aperture setting. Does the job for capturing (water-)sports, dance and other smooth or fast motions.
Ektachrome 100D + Canon 518:
What's your Canon 518 worth? Take a look at this list of: sold Canon 518 for a value indication.