13
Locking the platform
The centre lock mechanism is operated by a slider on the rear of the head. To engage the lock,
hold the platform in the horizontal position and push the slider
to the left.
To release the centre lock, push the slider
to the right.
Pan and tilt brakes
Friction brakes on each axis allow the head to be locked at any chosen position. The operating
levers for the pan brake
and tilt brake
are fitted on the left-hand side of the head.
To apply the brake, turn the lever fully clockwise. To release the brake, turn the lever fully anti-
clockwise.
Pan and tilt drag
Both the pan and tilt mechanisms incorporate the Vinten thin film (TF) system to ensure smooth
movement of the camera about these axes and are fitted with control knobs to adjust the drag set-
ting.
Both drag knobs are provided with illuminated scales, graduated from 0 to 9. To illuminate the
scales, press the switch
. The lamp will extinguish after 15 seconds.
The tilt drag adjustment knob
is on the left-hand side of the head, the pan drag knob
on the right -hand side. To increase drag, turn the knob clockwise, towards a higher graduation.
To decrease drag, turn the knob anti-clockwise, towards a lower graduation.The whip-pan facility
is unaffected by the pan drag setting.
NOTE:
If the ambient light level is high, the scales will not be lit.