Chinon's bayonet-mount cameras used the Pentax K bayonet, the descendant of which is still used on the Pentaxes (and Samsungs) of today, and compatability is pretty good (although if they're AF Chinons, that might possibly be a problems). That said, it's almost certainly a false economy to buy a camera purely to use any old lenses you might have, as Chinon lenses weren't among the very best, and digital imposes very different requirements. It's far better to see which camera suits you best, and if it happens to take those lenses, it's a slight bonus, if not, don't consider that you've lost anything.