Critical Plane of Focus



This picture was set at F5.6 and the critical plane of focus is between the 1 and 2.



This picture was set at F10 and the critical plane of focus is between the 1 and 2.

This picture was set at F36 and the critical plane of focus is by the 2. 

This picture has an F# of 5.6 and the critical plane of focus is at the 4.

This picture has an F# of 10 and the critical plane of focus is between the 4 and 5.

This picture has and F# of 36 and the critical plane of focus is by the 5 and 6.