Manfrotto 521 Instruction Manual page 11

GB
Progressive mode zoom
Rotate the knob right (or left, dependent on the zoom direction) to
zoom tele. The more angle the knob is rotated the faster zoom
speed is. If the LED "P" is on, maximum zoom speed is limited to
the pre-set zoom speed.
Rotate the knob left (or right, dependent on the zoom direction) to
zoom wide. The more angle the knob is rotated the faster zoom
speed is. If the LED "P" is on, maximum zoom speed is limited to
the pre-set zoom speed.
Fixed mode zoom
Works only, if fixed zoom mode is selected.
Rotate the knob right (or left, dependent on the zoom direction) to
zoom tele. Zoom speed is always constant, limited to the pre-set
speed indicated by LED. Rotate the knob left (or right, dependent
on the zoom direction) to zoom wide. Zoom speed is always con-
stant, limited to the pre-set speed indicated by LED.
Customizing zoom speed limit
Rotate the zoom wheel and zoom with any speed you prefer. Press
the zoom speed button. While zooming, keep it pressed for approx.
1 sec, until the LED indicator will light off. The new speed limit will
be saved in microcontroller internal flash memory and restored
after each power off.
You may always reset the zoom speed to predefined factory setup
(see. Resetting zoom speed buttons).
Custom speed reprogramming may be done practically unlimited
number of times (min. 1.000.000,- times).
Resetting zoom speed limit
The zoom speed button is factory pre-set to the slowest speed
possible with LANC protocol.To reset the zoom speed button to
factory pre-sets stop zooming (release the zoom knob) and press
the button. Keep it pressed for approx. 1 sec, until the LED indica-
tor will light off. The factory pre-set speed limit will be restored.
Customizing zoom direction
To change the zoom direction, switch the controller off. Press the
"Zoom speed" button, do not release it, and switch the controller
on. Wait for Main Led to go on and that to go off. Release the but-
ton. The controller will now work with new zoom direction.
The whole operation takes about 6 seconds.
The new zoom direction information will be permanently stored in
the controller's internal flash memory and restored after each
power off.
11