Vocas MB-450 matte box - Manual (Page 5)

©Vocas Systems b.v., October 2006 5
Hints for using this mattebox on wide angle lenses:
These hints are written especially for lenses that are 4,5mm or wider.

Remove the 16:9 Mask, the 4th Filter holder or the Tilt filter unit from
the front of the mattebox, because these will vignet.

Do not use the 5th filter in the flexible adapter ring because this
requires the mattebox to be further away from the lens, which will result
in vignetting.

The standard three filter-trays can be used without vignetting.

All filter frames should be put in the mattebox with the type engraving
facing the cameraman.