What do the buttons on the Canon White Rabbit lens mean?

Buttons on the White Rabbit lens:

1: AF/MF is used to switch between manual focus and automatic focus, AF automatic focus and MF manual focus;

2: Focus distance switch, used to switch the focus distance to speed up the focus. There are 1.2m to infinity and 2.5m to infinity. It can be switched according to the distance from the subject when shooting, or it can always be placed between 1.2m and Infinity position;

3: STABILIZER image stabilizer switch (anti-shake switch), turn it to ON to turn on the image stabilizer, turn it to OFF to turn off the image stabilizer;

4 : STABILIZER MODE image stabilizer mode switch. In mode 1, it is used to correct shake in all directions and is used for shooting stationary objects. In mode 2, when following the shooting in the horizontal direction, it compensates for vertical shake and follows in the vertical direction. Compensates for horizontal shake when shooting.

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