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I only use AF on macro. Sea and Sea do standard ports without MF controls and ports with the focus dials. There is little point in paying for the port with the dials if you are not going to use it . So unless you are going to have the gears you may as well go for the cheaper port.
The S&S port with dials takes 2 gears. One moves the AF/MF ring on the lens to disengage the motor. The other engages the focus ring. So to go from AF to MF you need to turn the first dial to remove the motor drive and then the second to focus. To move back you turn the first dial to reengage the motor.
I tend to pick the focus distance on AF, hold the AF lock lever, then take the shot. So no need for the MF control.
Daniel
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