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The nFOCUS controller fits in the palm of your hand and provides two directions at two speeds with only two buttons using advanced logic control and voltage regulated output! Low speed is adjustable
pulse width modulated (PWM) drive, providing full voltage torque for reliable low speed
operation.Press the second button
down while holding the first button down and nFOCUS digital logic control switches to high
speed drive, to get you to focus quickly.nFOCUS avoids
the problems with the focus motor controllers which adjust voltage
to adjust speed, and thereby don't have the umph to turn the
motor over at low speed. The nFOCUS whacks the motor with a full
12 volt , short duration pulse to overcome stiction at low speed
operation, providing plenty of umph! It is amazing to see nFOCUS
work, to see the focus change step by step till it's just right.
No more coasting past then back past then past again.Operates on 4 AA batteries
(supplied) for long life. |