Vocas MB-350 matte box - Manual (Page 5)

©Vocas Systems b.v., August 2002 5
Hints for using this matte box on wide angle lenses:
These hints are written especially for lenses wider than 5mm.

Remove the matte, because it will vignet.

The adapter rings for these lenses will let the matte box slide 8mm
further backwards over the lens. In this situation the first Filter frame
can no longer be used.
In the second Filter
frame a non rotatable 4”X4” filter can be used. If
this second filter has to be rotated (in the case when a polarize filter is
used) a 4.5”X4.5” filter and filter frame are available.
Order #: 0310-
0002 for the 4.5”X4.5” Filter frame.
Order #: 0380-
0001 for the 4.5”X4.5” Polarize filter.
 The other two 4”X5.65” filters can be used without vignetting.
 The 4”x4” filter frames should be put in the matte box with the “Vocas”
logo facing the cameraman.