Bernina sewing machines have 2 different styles of presser feet. If you look below at the pictures, you can compare the pictures to a Bernina foot that you have now to see which style your machine uses.
Bernina Presser Feet - Old Style Bernina Presser Feet - New Style Doesn't have a cut out, and has a rounded back Has a cut out, and has a square back
Your Bernina machine can also use generic snap on presser feet. In order to use any of the feet listed below, be sure to purchase the correct adaptor listed above (either old style or new style) as well as the Snap On Presser foot adaptor.