if you are making a short artistic film. Buy CineStudy if you shoot weddings or music videos (the time it saves is worth the $49).
Right-click your clip and select Slow Motion > Custom Speed . Set the percentage to 75% . If your original clip is 24fps, this brings you to 18fps. Turn off "Smooth" or "Optical Flow"—you want the strobing look. final cut pro super 8 effect
Go to the Crop tool and select "Custom." Drag the top and bottom bars in to create a 4:3 ratio. Then, go to Spatial Conform and set it to "None" to remove automatic zooming. if you are making a short artistic film