Sachtler ACE Manual Del Usuario página 11

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To assemble the top flag onto the Ace Matte Box (see Fig. 3):
If required, turn the top flag clamp knob counter-clockwise to loosen the top flag clamp.
Insert the top flag cut-out between the sunshade and the top flag clamp [A], then tighten
the top clamp knob [B] until it grips the top flag.
Adjust the angle of the top flag as desired [C], then tighten the top clamp knob [B].
Fig. 3 Assembling the top flag
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