Vocas MB-450 matte box - Manual (Page 6)

©Vocas Systems b.v., October 2006 6
Adjusting the quick lock mechanism:
The quick lock mechanism is factory pre-adjusted, nevertheless is it possible
that it clamps too tight or too loose on a lens. In this case perform the following
steps:

Pull the clamp lever outwards.

Rotate the clamp lever (not more than one twist at a time) clockwise to
tighten, or counterclockwise to loosen the mechanism.

Press the clamp lever back in the clamp ring.