FILMCITY CAMERA CAGE KIT FOR SONY A7s 3
Insert the filter holders to your matte box as shown below.
Note:
For better gripping of filter in filter holder, retighten the filter tray knob
to secure the filter properly.
Note:
If the French flag (top)
remains loose even after tightening
the knob you have to slightly
tighten the allen bolt as shown in
the image.
Insert the French flag in to the matte box and tighten the screws. Using the
same approach, insert the side flags into the (big) slots provided in the hinges
and secure with the screws.