I have a set of three filters and yes you can auto focus with them. They usually come in sets labelled +1, +2, +3 or +4 and you can stack them to get up to +6 or +7. I believe the + numbers are diopters. In any event they are pretty easy to use and not very expensive. The only down side is you will get a slight bit of softening around the edges of your image when you use them.