Can't remember if there are half stop clicks (maybe on some lenses) but
you can position the diaphragm anywhere between any two stops. The
aperture blades just close up in a continuous way.

If there is a metered finder, and that the true exposure lies somewhere
between f11 and f16, you will see the LED move from red to green as you
turn the aperture slowly from f11 to f16.

Thanks a lot. It sounds great.