This Robofocus motor and bracket were not required when I sold the C8 to which they were attached, so they are offered for sale separately.
As can be seen, the gear fits in place of the normal focus knob and the bracket is attached to the 3 mounting points around it. The hole in the gear is 0.75" (it's American). I don't know if this is an official Robofocus bracket or a home-made one, but I do know it worked. It was attached to an old orange-tube C8 and I don't know if fits the newer ones, but if you're interested we can work it out.
Note there is no controller supplied with this, just the motor, gear, belt and bracket.
