Miller cineline 70 Manual do operador - Página 12
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Operating Instructions
5 Counterbalance Control
The counterbalance system was designed to neutralise the
effect of the camera weight when it is tilted. The Cineline 70
Fluid Head offers an 8 position counterbalance system which
can be operated via the COUNTERBALANCE SELECTOR (fig.
2). The COUNTERBALANCE SELECTOR must be operated
when the CAMERA PLATE is in a horizontal position. After
changing the Counterbalance setting it may be necessary to
tilt the camera back and forth to ensure that the CB spring
has engaged. The camera must be held securely while
changing the Counterbalance setting.
5.1 For safety ensure that Counterbalance position 8 is selected.
5.2 Hold the camera and release the TILT LOCK, then gently
tilt the camera from a horizontal position forward then
backward and observe its response. If the Camera 'Springs
Back' to the horizontal position then a lower Counterbalance
setting is required, select Counterbalance position 7 and
recheck, select lower setting again if necessary. Correct
counterbalance setting has been achieved when minimum
effort is required to move the camera over the entire tilt
range.
TIP: Fine tuning can be achieved by adjusting the CAMERA
PLATE - see step 3.5.
Counterbalance Performance
300
250
200
150
100
50
0
0
5
10
15
Payload Capacity kg (lbs)
C of G*
100 (4")
125 (5")
150 (6")
175 (7")
200 (8")
*C of G: Centre of Gravity for camera height above camera plate
12
20
25
30
35
40
45
50
Camera Payload (kg)
Min
5.4 (11.9)
43 (94.6)
4.7 (10.3)
37.8 (83.2)
4.2 (9.2)
33.7 (74.1)
3.8 (8.4)
30.4 (66.9)
3.5 (7.7)
27.7 (60.9)
55
60
65
Max
Fig. 10