Multiple Exposure - FUJICA AX-3 Owner's Manual

NOTE: Exposure compensation of +2 and -2 can be made by means of the Film Speed
Selector. For example, if you are using an ISO/ASA 100 film and an amount of
compensation required is +2, set the Film Speed Selector to ISO/ASA 25.

6. MULTIPLE EXPOSURE

Multiple exposure is used to create special picture effects by
superimposing the same scene or another scene several times on the same
frame. It is easy to do with your Fuji AX.